On my high school’s profile is just lists it as “AP Calculus”
It doesn’t list if it is either AB or BC, but my school only offers AB and not BC.
It will probably show up somewhere on the Secondary School Report every high school counselor sends.
Even if it only says AP Calculus, they will probably just ask your counselor for verification.
For what it’s worth, every time I’ve seen “AP Calculus” without qualification, it meant “AP Calculus AB.”
It hardly matters.