If, after reaching a certain level of production, one additional unit an input variable would produce a decline in total product, then:
A) diminishing marginal returns to that input have begun.
B) the output level where marginal product of that input is maximized has not yet been reached.
C) the output level where marginal product of that input is equal to zero has been reached.
D) average product of that input is at its minimum.
E) average product of that input is increasing.

Question

Quizplus · Accepted Answer

When an additional unit of input causes a decline in total product, the marginal product of that input is zero, indicating that the output level where the marginal product is zero has been reached.

If, After Reaching a Certain Level of Production, One Additional