PREP语法题求教

melody远行

Because she knew many of the leaders of colonial America and the American Revolution

personally, Mercy Otis Warren was continually at or near the center of political events from 1765 to

1789, a vantage point combining with her talent for writing to make her one of the most valuable

historians of the era.

(A) a vantage point combining with her talent for writing to make

(B) a vantage point, when combined with her talent for writing, that made

(C) a vantage point that combined with her talent for writing, and it made

(D) and this vantage point, which combined with her talent for writing to make

(E) and this vantage point, combined with her talent for writing, made
有同学能教教B选项到底哪儿错了吗？看了PREP的解释，还是模棱两可的。