Use the Figure to Answer the Following Question(s)

Multiple Choice

Use the figure to answer the following question(s) .
Figure 9-8

If the market price in Figure 9-8 increases to $4, indicate the firm's profit-maximizing output and total revenue.

A) output, 15; total revenue, $45
B) output, 15; total revenue, $60
C) output, 17; total revenue, $68 (approx.)
D) output, 20; total revenue, $80