51. In the production possibility frontier in Figure 1-1, which point(s) is (are) infeasible? Computers Figure 1-1 50 40 30 25 D 0 7580 85 100 Apples a. D, A, and E b. A and E c. B and C d. D 52. In the production possibility frontier in Figure 1-1, which point(s) is (are) efficient? a. A, B, and C b. A and E c. B and C d. E Computers Figure 1-1 50 40 30 25 D 7580 85 100 Apples