All calendars are 40% off at a bookstore.Which pair of expressions can both be used to find the price, p, of a calendar after the 40% discount? (ASAP!! only answer if you actually know the answer, thx)

A. 0.4p and 0.6p
B. 0.6p and p - 0.4p
C. 0.4p and p - 0.6p