Bari-Tenor? Baritone? Tenor?

I want to know my voice. I can hit G (Below Middle C) but I have to really try. A G above middle C is what I would call my "Limit". I was recently in Footloose as Cowboy Bob singing "Still Rockin" and was able to hit the C above middle C (obviously). I'm 16. In the past few months my range has begun to really explode and my speaking voice (I've heard) has even gotten lighter. My voice teacher tells me at this point she thinks I'm a Baritone, but may become a Tenor, because she's had it happened to past students. Help? Thank you so much!!