Writing question

<p>Apparently this was on today's PSAT. Friend asked me for help on this one...</p>

<p>A. A huge tree almost fell on Joan's car while she was visiting blah blah blah, the largest blah of blah blah blah.</p>

<p>B. While Joan was visiting blah blah blah, the largest blah of blah blah blah, a huge tree almost fell on her car.</p>

<p>Both seem right?</p>

<p>No, the first one was actually “A huge tree almost fell on Joan’s car while visiting”, lacking the she was, making it wrong.</p>