请问T-9-Q27. 大全987-606. GWD13-27题到底选A还是C

meimeijulia

Research during the past several decades on the nature of language and the processes that produce and make it understandable has revealed great complexity instead of underlying simplicity.

A.        that produce and make it understandable has revealed great complexity instead of underlying simplicity
B.        of producing and understanding it have revealed not underlying simplicity but great complexity
C.        by which it is produced and understood has revealed not underlying simplicity but great complexity
D.        by which it is produced and understood have revealed great complexity rather than underlying simplicity
E.        by which one produces and understands it have revealed great complexity instead of underlying simplicity

GWD给出的答案是A。我自己选的是C。

在网上搜到一个关于此题的解释，分析A的错误的，觉得挺有道理http://blog.sina.com.cn/s/blog_4edde3060100brm9.html

请问到底选什么呢？理由是什么？

meimeijulia

这么快就沉了啊! 自己顶一下~

kiwifoodtown

我至今仍在A和C上纠结。

greygray

我觉得C是错的。因为，首先，被动语态很奇怪。其次，not.....but...的句型很奇怪。
一般用法是，did not reveal underlying simplicity but reveal great complexity....好像有点重复，但是，否定句一般都是用助动词+not表否定吧，就像我直接说，It revealed not the simplicity, 不如, It did not reveal the simplicity