If We Assume Only One Factor (Labor), We Can

Multiple Choice

If we assume only one factor (labor) , we can
Demonstrate on the PPF the opportunity cost of
Producing less of one good and more of the other good
By:

A) taking the sum of the marginal products of labor for the two goods.
B) taking the difference of the marginal products of labor for the two goods.
C) taking the ratio of the marginal products of labor for the two goods times -1.
D) taking the average of the marginal products of labor for the two goods.