Sentence Correction

A study on couples' retirement transitions found that women who took new jobs after retiring from their primary careers reported high marital satisfaction, more so than those who retired completely.
A. more so than those who retired
B. which was more than if they had retired
C. more than when retiring
D. more than if they were to retire
E. which was more so than those retiring

OA A

crazy4gmat wrote:A study on couples' retirement transitions found that women who took new jobs after retiring from their primary careers reported high marital satisfaction, more so than those who retired completely.
A. more so than those who retired
B. which was more than if they had retired
C. more than when retiring
D. more than if they were to retire
E. which was more so than those retiring

OA A

I see only A is close to the right answer.
IN B and E, 'which' tries to refer the fact of getting more satisfied from getting a job after retirement, which is not possible and better with "so" in choice A.
C and D...no reason to choose as right answer...no comparison of 'when' and no condition of 'if' exist in the sentence given.

A is correct

Women are compare with other women.. thus the use of those is necessary in comparison...

E is awkward and doesn't contain past tense...

found that
women who took new jobs after retiring .....,
more so than those who retired completely.

parallel structure

why "so" should be in A?

IMO A

Correct comparison, More so ... compares marital satisfaction of A type of women with Marital satisfaction of women of Type B

Feruza Matyakubova wrote:why "so" should be in A?

The idiom "more so" means "more that way". It indicates more of a certain quality or characteristic. In this case, that quality is the women's increased feeling of satisfaction.

Ultimately, the comparative puts "so" inside of "more....than".