请教Nn一道题

A study on couples' retirement transitions found that women who took new jobs after retiring from

their primary careers reported high marital satisfaction, more than when retiring completely.

(A) more than when retiring

(B) more than if they were to retire

(C) more so than those who retired

(D) which was more so than those retiring

(E) which was more than if they had retired

what's ur problem?