请教987中的 38/42

38.        According to a recent study, the elderly in the United States are four times more likely to give regular financial aid to their children as to receive it from them.

(A) the elderly in the United States are four times more likely to give regular financial aid to their children as

(B) the elderly in the United States are four times as likely to give regular financial aid to their children as it is for them

(C) the elderly in the United States are four times more likely to give regular financial aid to their children than

(D) it is four times more likely for the elderly in the United States to give regular financial aid to their children than they are

(E) it is four times as likely that the elderly in the United States will give their children regular financial aid as they are

答案是c,我选的也是c,因为觉得b中最后的“it is for them“多余；

42.    According to a survey of graduating medical students conducted by the Association of American Medical Colleges, minority graduates are nearly four times more likely than are other graduates in planning to practice in socioeconomically deprived areas.   

(B) minority graduates are nearly four times more likely than other graduates who plan on practicing

(C) minority graduates are nearly four times as likely as other graduates to plan on practicing

(D) it is nearly four times more likely that minority graduates rather than other graduates will plan to practice

(E) it is nearly four times as likely for minority graduates than other graduates to plan to practice

答案c,我想b的缺陷在于who plan 没有to plan简洁，那是不是如果b也改成to plan就对了呢？ 这两种结构在不影响逻辑意思的前提下游没有优劣呢？谢谢

for 38:  correct,

B distorts the oringinal mean of the sentence

终于有人回答我的问题了，谢谢Zeldaw