Hard unusual Multiple Choice question . Help please!

<ol>
<li>Swimmer Mark was the most decorated athlete of the 1972 Summer Olympics (Games, he won seven gold medals).
A. Games, winning seven gold medals
B. Games ; seven gold medals were won by him.
Why A not B???? </li>
</ol>

<p>I</p>

<p>Wouldn’t A be a misplaced modifier? " winning modifying olympics? or is it because olympics is a part of a prepositional phrase ? </p>

<p>The modifier is still talking about Mark. It’s not “The Olympics, winning seven gold medals…”; it’s “Swimmer Mark…winning seven gold medals.”</p>

<p>B is wordy and can be phrased better by A.</p>

<p>B uses the passive voice instead of the active voice as well!</p>