31) Refer to the production possibilities frontier in Figure 2.1.2. Suppose that 50 units of Y are currently being produced. Then A) 6 units of X are being produced. B) 6 units of X can be produced if all resources are used and assigned to the task for which they are the best match. () 7 units of X are being produced. D) 9 units of X can be produced if all resources are used and assigned to the task for which they are the best match. E) resources are not being fully utilized