I read in some of the posts that the sentence construction having "that" followed by a comma is incorrect. Is that true ?
For example, in the following GMATPrep question, can I strike out answer choice B because it has such construction ?
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
OA is E.
Please clarify. Thank you in advance !