Oblate: I don’t get it. Are you a teacher or a student?
13-14 is a very large load, and almost impossible if you are in a school with a dual curriculum (i.e. Jewish subjects). I took 6 (some of it was self-study – I taught myself and just took the AP. I got credit for 5/6).
If you take only one, take European History, it’s worth 4 credits in most colleges and places you out of really tedious coursework.
IIRC they saved me at least 17 credits, but more importantly, they allowed me to place into higher level Humanities courses (English/History) so I had better professors and learned more.
There is no penalty for doing poorly. What do you have to lose?