One way to approach Essay C is a ticket "in your dreams." One advantage here is you can go anywhere, do anything, or meet anybody that you want!

I have seen effective essays visiting their "dream" technology conference or meeting a leader in their field of interest. Some students write about where they envision themselves in the future.

Don't let this prompt limit your imagination. Turn it into your own response. You don't even have to worry about spelling out how you got your ticket. It's your dream, do whatever you want!