Please answer A, B, and C.

We found that the marketing research department for the company that manufactures and sells memory chips for microcomputers established the following price-demand and revenue functions: P(x) = 90 - 3x Price-demand function R(x) = xp(x) = x(90 3x) Revenue function where p(x) is the wholesale price in dollars at which x million chips can be sold, and R(x) is in millions of dollars. Both functions have domain 1sxs 18. (A) Which of the following is the graph of the revenue function? OA. OB. Q Oc. BO 600 -200 10120 400- -400 200- -600- -20 -15 -10 -5 0 0- 0 5 10 15 20 (B) Find the output that will produce the maximum revenue. million chips (Type an integer or a fraction. Simplify your answer.) What is the maximum revenue? million (Round to two decimal places.) (C) What is the wholesale price per chip that produces the maximum revenue? (Round to the nearest dollar.)