y疑惑

In1852 Robert Angus Smith published a detailed report of the chemistry of rain kin a large area around the city of Manchester, England, noting that the closer one came to town, the more the city air would become increasingly acidic.

A.
that the closer one came to town, the more the city air would become increasingly acidic

B.
that the city air became increasingly acidic the closer one came to town

C.
@that coming closer to town, the city air became increasingly acidic

D.
that the more the city air became increasingly acidic, the closer one was to town

E.
the city air becoming increasingly acidic as one would come closer to town

搜了一下，好像没人问到这一题。 我的问题是 A答案的结构是很好的，但是 more 与 increasingly 不是重复吗？ 如果这题没有increasely 我会义无反顾的选A，但是考虑了一下还是选了C。 请走过路过的朋友们帮忙解释下~谢谢~