<p>By simply entering an Internet website or calling a toll-free number, a catalog order can be placed for almost anything from cheesecakes to fully equipped desktop computers.</p>
<p>A. a catalog order can be placed
D. you can place a catalog order</p>
<p>those were the only answers that would make sense, and the answer given was D.</p>
<p>why can’t it remain A?</p>
<p>Is it because the sentence needs a subject “you”? But if the sentence is left as is, the subject is assumed to be “one”, right?</p>