Which of the following statements is true?
A) The average product of labor is at its maximum when the average product of labor
equals the marginal product of labor.
B) The average product of labor is at its minimum when the average product of labor
equals the marginal product of labor.
C) The average product of labor tells us how much output changes as the quantity of
workers hired changes.
D) Whenever the marginal product of labor is greater than the average product of labor
the average product of labor must be decreasing.
For productive efficiency to hold
A) price must equal the marginal cost of the last unit produced.
B) price must equal marginal revenue of the last unit sold.
C) average variable cost is minimized in production.
D) average total cost is minimized in production.