vinay1983 wrote:As they get older, women usually maintain their ability to hear higher frequencies longer than men do. This is only because men are usually exposed to more dangerously loud noises at work and during recreation. In societies that do not have hazardous noises, there is no difference in hearing loss between men and women. Nor is there a difference in hearing loss between males and female animals whose hearing has been studied.

Which of the following choices MUST be true based on the information above?

Which of the following MUST be true? So, we're not looking for something that could be true. It MUST be true.

A. When women and men are exposed to the same level of hazardous noises while working, men experience greater loss of hearing.
Nothing about this is mentioned in the passage. In fact, we're told that in societies that do not have hazardous noises, there is no difference in hearing loss between men and women.
So, when men and women BOTH experience no hazardous noise, there hearing loss is EQUAL.
ELIMINATE A.


B. The difference between men and women in their ability to hear higher frequencies is entirely unrelated to any difference in the structure of the inner ear.
This MUST be true.
To see why, let's see what happens if it weren't true. That is, the difference between men and women in their ability to hear higher frequencies IS RELATED to a difference in the structure of the inner ear. If this were the case, then in societies witn no hazardous noises, there would still be a difference in hearing loss between men and women. However, the passage tells us that, In societies that do not have hazardous noises, there is no difference in hearing loss between men and women.
So, answer choice B MUST be true.


C. If male animals were exposed to the same loud noises to which many men are exposed, the animals would experience greater loss of hearing than would female animals.
There's nothing in the passage to suggest this.
ELIMINATE C


D. In general, women and men do not differ in their ability to hear lower frequencies.
There's nothing in the passage about LOWER frequencies
ELIMINATE D


E. Women who live in societies that do not have hazardous noises experience less loss of hearing than do women who live in societies that do have hazardous noises.
The passage is concerned with one's EXPOSURE to hazardous noises. This statement is about whether or not the society has hazardous noises
ELIMINATE E

Answer: B

Cheers,
Brent