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) = 85 - 4x Price-demand function R(x) = xp(x) =x(85 - 4x) 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 1 s x $ 17. (A) Which of the following is the graph of the revenue function? O A. O B. O C. 400- -200-+ 200- -400- 0 5 10 15 20 -20-15-10 -5 0 (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.)