Nope. It doesn't state Marsha is a senior at the Academy!

True. I was assuming that all the students described were at the academy in question. Now that you've pointed it out, I think it would be a cheap trick to phrase a question thusly. There is an implication that the students mentioned are all at the same academy, although I suspect that the person who wrote the question may consider it fair game to trick the examinees thusly.