<p>Many changes occured while she was president of the college, and they increased its educational quality as well as effectiveness.</p>
<p>D) college; these changes increased its educational quality and effectiveness
E) college; these changes increased both the educational quality and effectiveness of the college</p>
<p>I thought the answer was D but it is E. Why wouldn't D work? D sounds perfectly fine. And isn't COLLEGE redundant in choice E? Why repeat it when you can say "its"</p>