the question are asked

Good Y 80 A 60 40 20 - C 0 2 6 8 10 Good X Refer to the production possibilities frontier in the above figure. At point A, the opportunity cost of increasing production of Y to 80 units is Select one: O a. 80 units of Y. O b. 10 units of Y. O c. 3 units of X. O d. 2 units of X