Can a great application essay make up for some shortcomings in my application?

<p>My transcript had a number of Cs and even a D or two on it, and I still got into a couple of selective LACs as an aid-seeking international–for whom acceptance rates at those schools hover around 10%–and was waitlisted at a very selective university, largely because of my essays, which I think were the most memorable part of my application. That’s what my counselor said, at least…</p>