<p>The revolt against Victorianism was perhaps even more marked in poetry than either fiction or drama.</p>
<p>(A) either fiction or drama
(B) either fiction or in drama
(C) either in fiction or drama
(D) in either fiction or drama
(E) in either fiction or in drama </p>
<p>Collegeboard says the answer is D.</p>
<p>Why does E not suffice? Do you not need parallel structure when using or/nor?</p>