Concur with the others - although I would pick AP Chemistry out of all the others if your daughter can only choose one. If she can do multiple, definitely AP Chemistry and AP Physics.
I'm going to use this as opportunity to say that she should also, at some point, take a "fun" class just for the heck of it. AP and Honors level courses are important but I've started to see this trend where (mostly from parents) posters are advised to take every single difficult class and to drop "film" or "art" because the SAs don't care as much about them. Yes, your DD should absolutely take the most rigorous courses available and do well in them. But, the SAs also like to see well-rounded applicants. For example, I took every AP offered when I was in high school. But I also took three years of a choir course and a military history course as electives. The only reason I didn't take the choir course my senior year is because I replaced it with AP Music (hardest class I've ever taken by far). But, these kids are still kids and should enjoy learning, not just kill themselves trying to show how brilliant they are. A "fun" class can provide the mental break a high school student might need to be able to maintain excellence in the other courses.
Also, keep an eye on the AIM program for next year (summer going into her senior year) - it's a great opportunity for juniors to experience what USCGA is like.