[求助]大全604

 Repelled by bodily punishments such as maiming and branding, the idea of penitentiaries were reforms of the penal system by Quakers.

(A) the idea of penitentiaries were reforms of the penal system by Quakers

(B) penitentiaries were ideas for reform of the penal system suggested by Quakers

(C) Quakers suggested the penitentiary as a reform of the penal system

(D) Quakers suggested that the penal system be reformed as penitentiaries（C）

(E) the penitentiary was suggested to be a reform of the penal system by Quakers

答案C，谁能帮忙解释下这里suggest as的用法。还有D为什么不对。谢谢

suggest sth. as sth.是固定搭配之一
I suggest Paris as a good place for a honeymoon.
She suggested John as chairman.
另外还有：
for： Who would you suggest for the job?
to： He suggested to the committee that they should delay making a decision.

D里面单复数很有问题.
http://forum.chasedream.com/dispbbs.asp?boardid=23&id=44946