一道13里没有的GWD

In 1852 Robert Angus Smith published a detailed report of the chemistry of rain in 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

A凑合,但好象也有问题,大家看看吧! 有没有知道是否最初的GWD不止13套,这题来自另外的一部分?

从选项上来看，偶选A，不过题干中的nothing是不是应该是noting?