Gmat CR--I found this bit confusing

[Chaitanya_1986]

It is well known that human tears often serve to moisten the eye, protect it from infection, and wash away irritants; such tears are called irritant or reflex tears. Dr. Field hypothesizes that emotional tears have a different biological function. She suggests that by shedding tears when under emotional stress people excrete harmful chemicals that build up in such body fluids as blood serum during emotional stress.

Each of the following, if true, provides some support for Dr. Field's hypothesis EXCEPT:

(A) The people most likely to cry when undergoing emotional stress are less likely to suffer from stress-related diseases than is the population at large.
(B) If a local anesthetic is applied to the surface of the eye, irritant and reflex tears are inhibited, but emotional tears are not.
(C) The chemical composition of tears that are induced by grit in the eye is identical to the composition of tears induced by emotional stress.
(D) The concentration of a substance that the body produces only under conditions of emotional stress is thirty times greater in tears than in blood serum.
(E) Patients who suffer from a condition that prevents secretion of tears display a slower than normal physiological recovery from emotional stress.

OA is C

[mundasingh123]

The hypothesis is that emotional tears have a different biological function.
(A) The people most likely to cry when undergoing emotional stress are less likely to suffer from stress-related diseases than is the population at large.
This means that tears released during emotional stress have stress reducing functions
(B) If a local anesthetic is applied to the surface of the eye, irritant and reflex tears are inhibited, but emotional tears are not.
This means that tears released during emotional stress have functions different from those of reflex tears
(C) The chemical composition of tears that are induced by grit in the eye is identical to the composition of tears induced by emotional stress.
This conveys no informations that could have an effect on the hypothesis
(D) The concentration of a substance that the body produces only under conditions of emotional stress is thirty times greater in tears than in blood serum.
This conveys that tears released during emotional stress are different from reflex tears and hence the the tears released during emotional stress have a different function since they have different ingredients
(E) Patients who suffer from a condition that prevents secretion of tears display a slower than normal physiological recovery from emotional stress. This means that tears released during emotional stress aid recovery . therefore the hypotneis is correct
Ans C

[sandy217]

The hypothesis is that emotional tears have a different biological function.
(A) The people most likely to cry when undergoing emotional stress are less likely to suffer from stress-related diseases than is the population at large.
This means that tears released during emotional stress have stress reducing functions
(B) If a local anesthetic is applied to the surface of the eye, irritant and reflex tears are inhibited, but emotional tears are not.
This means that tears released during emotional stress have functions different from those of reflex tears
(C) The chemical composition of tears that are induced by grit in the eye is identical to the composition of tears induced by emotional stress.
This conveys no informations that could have an effect on the hypothesis
(D) The concentration of a substance that the body produces only under conditions of emotional stress is thirty times greater in tears than in blood serum.
This conveys that tears released during emotional stress are different from reflex tears and hence the the tears released during emotional stress have a different function since they have different ingredients
(E) Patients who suffer from a condition that prevents secretion of tears display a slower than normal physiological recovery from emotional stress. This means that tears released during emotional stress aid recovery . therefore the hypotneis is correct
Ans C

Not convinced with D reasoning , Rest looks fine . Somehow i felt D is also a contender.

[mundasingh123]

kindly consider the example that blood consists of blood serum , platelets as well as haemoglobin.
They all have different functionalities since they are made up of different things . Going by the same logic that since some material is made of different stuff , it might serve a different purpose from another

[ranjeet75]

What is the source of the ques?

[LIL]

let's break it down, yo

irritant/reflex tears protect the eye.

dr. fields suggests that emotional tears are different--instead of protecting the eye, they get rid of bad things in the body that occur when people are stressed.

"all of the following arguments suggest that this is correct EXCEPT" < we have to weaken the argument. the argument being that emotional tears are different from reflex tears, and that emotional tears have stress chemicals in them.

the answer is (c), because (c) says that the chemical makeup of reflex tears are the same as the chemical makeup of emotional tears. in other words, reflex tears are the same as emotional tears -- our argument is that they are different, so this weakens the argument.

(d) is not a viable answer because it supports dr. fields argument that emotional tears have stress chemicals in them. while it doesn't necessarily suggest that emotional tears and reflex tears are different, it is not in opposition to this fact the way that (c) is.

[havok]

It is well known that human tears often serve to moisten the eye, protect it from infection, and wash away irritants; such tears are called irritant or reflex tears. Dr. Field hypothesizes that emotional tears have a different biological function. She suggests that by shedding tears when under emotional stress people excrete harmful chemicals that build up in such body fluids as blood serum during emotional stress.

Each of the following, if true, provides some support for Dr. Field's hypothesis EXCEPT:

(A) The people most likely to cry when undergoing emotional stress are less likely to suffer from stress-related diseases than is the population at large.
(B) If a local anesthetic is applied to the surface of the eye, irritant and reflex tears are inhibited, but emotional tears are not.
(C) The chemical composition of tears that are induced by grit in the eye is identical to the composition of tears induced by emotional stress.
(D) The concentration of a substance that the body produces only under conditions of emotional stress is thirty times greater in tears than in blood serum.
(E) Patients who suffer from a condition that prevents secretion of tears display a slower than normal physiological recovery from emotional stress.

OA is C

Question step is asking you to find an answer that does not support the author's (or in this case the doctor's) conclusion, which is that the body secretes a special type of tear when under emotional distress.

(c) basically states that the body sheds the same tear regardless of what is happening to it, which goes directly against the conclusion. therefore (c) is the answer.

[AIM GMAT]

IMo C .

The argument clears states that the reflexive tears and the emotional tears are not the same , there biological functions are diffrent . So Option C fits the billl as it tell us that both types of tears are the same .Reflexive tears wash away irritants and emotional tears excrete the harmful chemicals of body fluids .