求助OG13的题目与07PP的题目为什么答案不一样

lvfeiying

n addition to her work on the Miocene hominid fossil record, Mary Leakey contributed to archaeology with her discovery of the earliest direct evidence of hominid activity and painstakingly documenting East African cave paintings.

(A) Leakey contributed to archaeology with her discovery of the earliest direct evidence of hominid activity and painstakingly documenting
(B) Leakey contributed to archaeology by her discovery of the earliest direct evidence of hominid activity and by painstakingly documenting
(C) Leakey was a contributor to archaeology with her discovery of the earliest direct evidence of hominid activity and with her painstaking documentation of
(D) Leakey's contributions to archaeology include her discovery of the earliest direct evidence of hominid activity and her painstaking documentation of
(E) Leakey's contributions to archaeology include discovering the earliest direct evidence of hominid activity and painstaking documentation of

原文大致意思：除了干了一个事情，这个家伙还对另外一些事情做出了贡献。

题目分析：根据 In addition to her work 我们知道逗号后面就不应该跟人，ABC干掉。而后面应该是discovery和documentation形成并列关系。
D写的比较并列，保留。
而E前面是动名词discovering后面是名词documentation，显然不对应，干掉！
这个是英吉给的分析，OG13的题目

In addition to her work on the Miocene hominid fossil record, Mary Leakey contributed toarchaeology through her discovery of the earliest direct evidence of hominid activity and throughher painstaking documentation of East African cave paintings.
(A) Mary Leakey contributed to archaeology through her discovery of the earliest direct evidence ofhominid activity and through her painstaking documentation of
(B) Mary Leakey contributed to archaeology by her discovery of the earliest direct evidence ofhominid activity and painstakingly documenting(C) Mary Leakey was a contributor to archaeology by discovering the earliest direct evidence ofhominid activity and with her painstaking documentation of
(D) Mary Leakey's contributions to archaeology include her discovery of the earliest direct evidenceof hominid activity and painstakingly documenting
(E) Mary Leakey's contributions to archaeology include her discovering the earliest direct evidenceof hominid activity and painstaking documentation of 这个是另一道题，如果按照上面的解题过程，那么正确答案为什么是A，in addition to her work...不是应该不加人才会对应么？