The graph shows the marginal cost of producing blue jeans and the marginal benefit from blue jeans in Oakdale. Denim skirts per pair of blue jeans Oakdale achieves allocation efficiency if MC 12 10- 8 O A. producers can sell the quantity of blue jeans produced at the highest price possible O B. people's marginal benefit from a pair of blue jeans exceeds the marginal cost of producing them O C. 4 pairs of blue jeans an hour are produced O D. 10 pairs of blue jeans per hour an produced A MB 10 Pairs of blue jeans per hour