Remember. Some community colleges accept combined Anatomy and Physiology class for the nursing program. But if you want to excel and get a BSN in the future , some schools don't accept that class and you will have to take them separately later. Your time is valuable. Make sure you utilize your time wisely and know what your end goal is and how to achieve it
My school would not let me retake a class to get a better grade. Only if I received a "F" or a "withdrawal ". Make sure you can retake it before you drop. I had "c's" in a couple pre req classes but my GPA was within their limits and I was in the lottery. If you go to a school where they go off grades : well you might want to retake those classes. Great luck to you