请教prep114

114 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 hand retired

the answer is c,

不明白 c中的so 指代satisfaction, satisfaction不是名词吗？so不是代替动词（动作）的吗？请牛人给指点，痛苦等待中.......

more (reported high marital satisfaction)SO

可能是这样的 

不明白，顶~

看了以前的讨论说More so 是词组表示：更是如此。但是这句还是不理解，和后面的than搭不上。

up

呼唤nn来讨论一下