The answer was:
(Did you notice it was the one that didn't match the letter for the answer? A Astronomy, B Biology, C Chemistry, D Geology...get it?)
Yep, Emma studies rocks. Her particular specialty is studying meteors so there's a little astronomy involved I guess.
Cindy Borgne got the pattern and since she was the only one to answer, it's Cindy 5, Rest of the World 0. But there's still plenty of time for anyone to jump in and catch up. Hint, hint.