The price p (in dollars) and the demand x for a particular clock radio are related by the equation x = 2000 - 80p. (A) Express the price p in terms of the demand x, and find the domain of this function. (B) Find the revenue R(x) from the sale of x clock radios. What is the domain of R? (C) Find the marginal revenue at a production level of 1200 clock radios. (D) Interpret R'(1700) = − 17.50. (A) p = p(x)= What is the domain of p(x)? OA. x ≤3000 OB. 0≤x≤ 2000 O C. x≥0 OD. All real numbers (B) R(x) = What is the domain of R(x)? OA. x≤3000 OB. x≥0 OC. 0≤x≤ 2000 OD. 0≤x≤ 80 (C) The marginal revenue at a production level of 1200 clock radios is $ (Round to the nearest cent as needed.) (D) Which of the following statements is NOT a correct interpretation of R'(1700) = - 17.50?