MC 70 ATC AVC Price (dollars) 9 68 898 10 20 40 60 80 100 120 140 Quantity Reference: Ref 23 2 Assume that the costs shown in the figure above refer to a firm in a perfectly competitive market. If the market price of the product sold by the firm is $40, what is the maximum profit for this firm? O A) $2,400 B) -$2,400 O C) $4,800 O D) $1,800