graph. For a certain output range (or quantity of pizzas produced per day), marginal cost is greater than average cost. What is this output range? A. The entire output range, from 0 to about 640 pizzas per day B. From 0 to about 525 pizzas per day C. The output range greater than about 525 pizzas per day D. Exactly 640 pizzas per day Part 2 When marginal cost is less than average total cost, average total cost must be A. constant. B. increasing. C. negative. D. decreasing