The Law of Diminishing Marginal Product

Multiple Choice

The law of diminishing marginal product

A) holds in the short run and the long run because as you increase the amount of variable inputs eventually the increases in output will decrease.
B) does not hold in the short run because of fixed costs.
C) does not hold in the long run because there are no fixed inputs in the long run.
D) holds in the short and long run because of economies to scale.