Exhibit 8.3 -Refer to Exhibit 8.3,which Shows Short-Run Profit Maximization by a Profit

Exhibit 8.3

-Refer to Exhibit 8.3,which shows short-run profit maximization by a perfectly competitive firm._____,the marginal revenue of the firm is equal to its marginal cost.

A) At the output level represented by point a
B) At the output level represented by point b
C) At the output level represented by point c
D) Between the output levels represented by points a and b
E) Between the output levels represented by points c and d