I had an account but I got logged out of it and i can't remember what email i used i need help getting into that account because I'm am paying for it

What is the best description of an advanced placement course? a. a rigorous version of a regular subject b. a course that is consistent with college/university courses and prepares a student to take ap exams in a particular subject area and opt out of corresponding college courses c. a course required for admission to college d. it's the same as a honors course