Use the revenue and cost functions below, to answer parts (A), (B), and (C). R(X ) = 80x - 3x2 15xs 20 C(x) =130+16x 1sxs 20 (A) What is the profit function? P(x) = -3x2+64x-130 What is the domain of the profit function? O A. [0,80] O B. [0,206] O C. [1,20] O D. [0,20]