Hi, I'm studying on my own for AP exams a year from now and need some advice on which books to get. I'm taking AP calculus (AB or BC, haven't decided yet), AP Physics 1, AP Physics 2, AP Physics C: Electricity and Magnetism, and AP Physics C: Mechanics. I already have a Calculus book by Ron Larson, is this sufficient to prepare for the calculus exam? Also, should I take AB or BC? Is BC a lot harder? Will universities be more forgiving of the score if I take BC over AB? Is it extremely hard to get a 5 in these exams? I've never taken an AP exam (or course).