Not opting out of prequestites

<p>So I had gotten a 5 on Calc BC, but is it okay if I choose not to send and receive ucla ap credit as I don’t want to opt out of 31a and 31b. If I choose to use the credit, I would be stuck going into 32a, then doing 32b and 33a as I would need one year of math for applying to med school. I never listed on my uc app I would take the calc bc test, as I was doubting I would take the test itself. I don’t feel I’m quite ready for 32a as calculus taught in my HS was horrid and I felt I didn’t learn anything though amazingly I gotten a 5. So would sending for my ap score for credit be optional? As I assume ap scores are just for credit not for admissions.</p>