Exhibit 7.2 -Refer to Exhibit 7.2,which Shows Different Cost Curves.What Does the Cost

Multiple Choice

Exhibit 7.2

-Refer to Exhibit 7.2,which shows different cost curves.What does the difference between curve A and curve B at a total cost of $500 and an output of 9 represent?

A) variable cost
B) fixed cost
C) total cost
D) marginal cost
E) average total cost