LRAC 10 80 90 100 110 120 130 1 40 150 160 170 180 190 2090 216 220 a. What specific feature of the graph suggest that the firm is a natural monopoly? Provide a clear and specific answer in one sentence. b. If the firm is unregulated, what do you predict it's price. output, and profits to be? c. If the firm is regulated and required to use marginal cost pricing. what is the predicted price, output. and profits? . If the firm is regulated and required to use average cost pricing. what is the predicted price, output. and profits? [For parts b. c and d, only provide the answer, an explanation is not required] Paragraph B / U-. 7 8 2 9 3 U