Exhibit 7-16  Short-Run Cost Curves for a Competitive Firm ​

Exhibit 7-16  Short-run cost curves for a competitive firm ​
In Exhibit 7-16, suppose the firm faces a price of $80 per unit. How much should the firm produce to earn the largest possible profit?

A) 2 units per hour.
B) 4 units per hour.
C) 5 units per hour.
D) 6 units per hour.