Opinion on writing the Common App essay about an EC

<p>So I'm really passionate about one of my extracurriculars and wondered if it would be ok to write about it as my main essay because the short answer limit is just crazy small. So for my short answer, I'd write about my job. Do you think this would be alright, or would you advise against this because it would only provide a narrow view of myself?</p>

<p>Applying to Brown, Yale, Rochester, and Vandy through the Common App.</p>

<p>If you answer one of the prompts then just do it!</p>