Solve the problem. The stadium vending company finds that sales of hot dogs average 28,000 hot dogs per game when the hot dogs sell for $2.50 each. For each 25 cent increase in the price, the sales per game drop by 2000 hot dogs. Determine a function R(x) that models the total revenue per game, where x is the number of $0.25 increases in the price of a hot dog. Select one: A. R(x) = -500x2 + 2000x + 70,000 O B. R(x) = -500x2 + 7000x + 70,000 O C. R(x) = 500x2 + 2000x - 70,000 O D. R(x) = -500x2 + 10,000x + 70,000