Use the following two statements to answer this question:
i. the marginal product of labor is the slope of the line from the origin to the total product curve at that level of labor usage.
ii. the average product of labor is the slope of the line that is tangent to the total product curve at that level of labor usage.
a. i is true, and ii is false.
b. both i and ii are false.
c. i is false, and ii is true.
d. both i and ii are true.