语法疑惑

Some historians of science have argued that science moves forward not much because of the insight if great thinkers but because of more mundane development,such as improved tools and technologies.

(A)because of the insight if great thinkers but because of

(B)because of the insight if great thinkers as the results of

(C)because of the insight if great thinkers as because of

(D)through the insights of great thinkers but through

(E)through the insights of great thinkers but results from

我选的是A,依据是not...but...固定习语,而答案是C,为什么呢?

难道是我把句意理解错了,它整句话的意思是什么?

请牛牛帮忙解释下!

又碰到一个没sense的题，顶一下…

LZ 原题漏了一个字,

Some historians of science have argued that science moves forward not so much
        because of the insight if great thinkers but because of more mundane development,such as improved tools and technologies.

C)because of the insight if great thinkers as because of

不过是not so much....as 的固定用法

啊,真抱歉,我不是故意的.以后发贴要多检查几遍.

它整句话的意思是什么呢?