<p>Recognizing grammar and usage error question:</p>
<p>The Scientist conducting the experiment in the rain forest was less interested in why the particular species was prevalent than in whether they have violently taken over another species' habitat. </p>
<p>a)conducting
b)than in
c)they have violently
e) no error </p>
<p>I'm having trouble understanding why the answer is C) they have violently. I initially thought the answer was B) than in; since i thought the in was unnecessary. I know the word they is talking about species, but i thought it was correct since it is plural and they is plural. </p>
<p>Can someone please explain to me why C is the answer?</p>