Critical Reasoning

How to solve this CR???

Which of the following most logically completes the argument given?

People in isolated rain-forest communities tend to live on a largely vegetarian diet, and they eat little salt. Few of them suffer from high blood pressure, and their blood pressure does not tend to increase with age, as is common in industrialized countries. Such people often do develop high blood pressure when they move to cities and adopt high-salt diets. Though suggestive, these facts do not establish salt as the culprit in high blood pressure, however, because ________.
A. genetic factors could account for the lack of increase of blood pressure with age among such people. B. people eating high-salt diets and living from birth in cities in industrialized societies generally have a tendency to have high blood pressure
C. it is possible to have a low-salt diet while living in a city in an industrialized country
D. there are changes in other aspects of diet when such people move to the city
E. salt is a necessity for human life, and death can occur when the body loses too much salt

OA D

NEGATING c WILL WEAKEN THE ARGUMENT THE MOST

i think this one is looking for an answer which supports the conclusion that salt is not the reason for HIGH BP

and D clearly says that there are some other changes in diet which poassibly cause the high BP

I think answer should be "D".As it clearly mentions an alternate reason for the high blood pressure.

Cause=Salt Effect=High Blood pressure, want to weaken this and (D) does this by providing an alternate cause.

IMO D,

only D gives alternate reason for high BP

Ragingrsx wrote:Cause=Salt Effect=High Blood pressure, want to weaken this and (D) does this by providing an alternate cause.

rightly said....IMO C

if ppl move to cities and adapt high salt diets and they develop HIGH BP ...these suggests that High BP can occur due to high quantity of salt in diet.
SO I dont agree with D
IMO B....
can any1 explain...

I would go with option D as the correct option