<li>In her letter, Ms. Kopel [stated that she had] proof that the treasurer had stolen some of the money.</li>
</ol>
<p>(A) stated that she had
(B) stated about having
(C) made a statement of having
(D) gave a statement that she had
(E) had a statement there about having</p>
<p>The answer is (A), but what makes choice (B) wrong?</p>