请教一个题

ynlf909

这个题目在我下载那个prep里给的答案是A但是我网上搜到的答案都是D这个题到底应该是什么答案啊。如果是D那么他的解释错在哪里了请各位NN赐教
In addition to her work on the Miocene hominid fossil record, Mary Leakey contributed to

archaeology through her discovery of the earliest direct evidence of hominid activity and through

her painstaking documentation of East African cave paintings.

(A) Mary Leakey contributed to archaeology through her discovery of the earliest direct evidence of

hominid activity and through her painstaking documentation of

(B) Mary Leakey contributed to archaeology by her discovery of the earliest direct evidence of

hominid activity and painstakingly documenting

(C) Mary Leakey was a contributor to archaeology by discovering the earliest direct evidence of

hominid activity and with her painstaking documentation of

(D) Mary Leakey's contributions to archaeology include her discovery of the earliest direct evidence

of hominid activity and painstakingly documenting

(E) Mary Leakey's contributions to archaeology include her discovering the earliest direct evidence

of hominid activity and painstaking documentation of

(A)正确，through… and through…平行。

(B)介词结构by her discovery of…与and后面的现在分词结构painstakingly documenting不平行。

(C)介词+现在分词结构by discovering与and后面的with+名词结构with her painstaking

documentation不平行；be a contributor改变原句意思。

(D)名词her discovery与and后面的现在分词结构painstakingly documenting不平行；名词’s

contributions形式不如动词更能表达原句意思。

(E)动名词her discovering与and后面的名词形式painstaking documentation不平行；名词’s

contributions形式不如动词更能表达原句意思。

(A)正确，through… and through…平行。

(B)介词结构by her discovery of…与and后面的现在分词结构painstakingly documenting不平行。

(C)介词+现在分词结构by discovering与and后面的with+名词结构with her painstaking

documentation不平行；be a contributor改变原句意思。

(D)名词her discovery与and后面的现在分词结构painstakingly documenting不平行；名词’s

contributions形式不如动词更能表达原句意思。

(E)动名词her discovering与and后面的名词形式painstaking documentation不平行；名词’s

contributions形式不如动词更能表达原句意思。