I said E.
My notes were the following:
Low salaries of women => pink collared occupations
Pink collared occupations held my women.
pink collared job pay has decreased
Therefore, in order for average salaries of women to approach those of men, ___
The immediate thought I had was that the women should go into the industries that are typically manned by men. E was the only choice.

Bunuel , Can you please give its explanation.
E seesm to be suitable but options such as C also seems viable
_________________

Which of the following best completes the passage below?

A primary factor in perpetuating the low salaries of women workers has been their segregation in the so-called pink-collar occupations, such as nursing, teaching, library science, and secretarial work. Partly because these jobs have traditionally been held by women, their salary levels have been depressed, and, despite increased attempts to unionize these workers in recent years, their pay continues to lag. Moreover, although a large percentage of women than ever before are now entering and remaining in the job market, most continue to gravitate toward the pink-collar fields, despite the lower salaries. It seems clear, therefore, that if the average salaries of women workers are to approach those of men, ______

(A) labor unions must redouble their efforts to improve the lot of working women
Labor union is one part only. The major chunk is these women divert towards these jobs easily. And they need improve their salary and not their lot of women.

(B) society’s perception of pink-collar jobs as less important and less demanding than other jobs must be changed
Pink collar jobs are very important. It is just that supply of women is increased against the demand.

(C) more men must be encouraged to enter fields traditionally occupied by women
Wrong. This was my choice but we are not concerned with men entering as this argument is about demand and supply.

(D) the number of jobs in the pink-collar fields relative to the size of the work force as a whole must be markedly increased
Wrong. This is a future prediction that we can do but not conclude from the argument.

(E) more women must enter occupations other than those traditionally reserved for them
Right. If more women will enter other occupations, naturally supply for pink collar jobs will decrease.

"A primary factor in perpetuating the low salaries of women workers has been their segregation in the so-called pink-collar occupations"

The answer is stated right in the first sentence! Segregation in pink-collar occupations has caused perpetuation of low salaries. For women to increase their salaries, they might need to seek out occupations not traditionally held by them. E is the best answer