Suppose there are only two firms-A Inc. and B Inc.-producing paper. Both firms are releasing pollution into the same river. To reduce the pollution, the regulatory agency must choose between using direct contro following diagrams show each firm's marginal cost of pollution abatement. 216- 216 180 MC 180 AMC 144- 144 Dollars 108 Dollars 108 72 72 36- 36 16 24 32 40 48 16 24 32 40 48 Abatement by A Inc. Abatement by B Inc. a. Suppose the regulatory agency requires that the two firms each abate 16 units of pollution. A Inc.'s marginal abatement cost at 16 is $ 108 . (Enter your answer rounded to the nearest whole number.) B Inc.'s marginal abatement cost at 16 is $ 144 . (Enter your answer rounded to the nearest whole number.) b. The total cost of 32 units of pollution abatement can be reduced G. Now suppose the regulatory agency instead imposes an emissions tax of $126 per unit of emissions. This tax is each firm's "marginal benefit" of abatement because for each unit of pollution abated the firm generates additional profit of $126 d. With the imposed tax of $126 per unit of emissions, A Inc. will choose to abate (Enter your answer rounded to the nearest whole number.) With the imposed tax of $126 per unit of emissions, B Inc. will choose to abate . (Enter your answer rounded to the nearest whole number.) e. With the imposed tax of $126 and amounts of abatement 20 and 12 chosen by the two firms, the total cost of the amount of abatement (20 + 12)