Unlike Gertrude Stein, Ezra Pound, and other expatriates, William Carlos Williams insisted that poets honor their own regions and employ specifically American rhythms.
(A) Unlike Gertrude Stein, Ezra Pound, and other expatriates, William Carlos Williams insisted
unlike is followed by a list of nouns and compares Gertrude Stein, Ezra Pound, and other expatriates to William Carlos
there is no error in comparison and the sentence is correct.
(B) Although Gertrude Stein, Ezra Pound, and other expatriates did not, William Carlos Williams’
insistence wasthe use of past continuous tense "was" is wrong
(C) Contrary to Gertrude Stein, Ezra Pound, and other expatriates,
it was William Carlos Williams who insisted
on gmat it is better to avoid avoid ambiguous "it"s and placeholder "it"s
its better to introduce the subject in comparison immediately without introducing a verb before the subject
introducing the verb before the subject of the sentence is considered passive in some cases and its not preferable
(D) As opposed to what Gertrude Stein, Ezra Pound, and other expatriates did, William Carlos Williams
was to insistthe verb tense is wrong when we are talking about a event that completed in the past
(E) While Gertrude Stein, Ezra Pound, and other expatriates did not, William Carlos Williams
was insistentthe verb phrase was insisted in unnecessary when we are talking about something that happened in the past, its better to use simple past tense to indicate events that happened and completed in the past