Suppose the figure to the right illustrates the marginal cost and marginal benefit from reducing sulfur dioxide pollution. Suppose also that the United States is currently generating 13.0 million tons of 400- pollution per year. 375- 350- What is the optimal level of pollution reduction? 325- 300- Marginal cost The optimal level of pollution reduction is million tons per year. (Enter your response rounded to 275- one decimal place.) 250- 225 Cost or benefit (dollars per ton) 150 125- 100- 75 50- 25- Marginal benefit 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Reduction in sulfur dioxide emissions (mil tons per year)Consider the marginal cost and marginal benefit of reducing water pollution illustrated in the figure to Marginal Cost the right. 500- Suppose the reduction in water pollution is currently 3 million tons per year. 450- In private bargaining, what is the minimum amount polluters would have to be paid to be willing to 100- reduce water pollution by an additional 2 million tons to 5 million tons? 350 - $ million . 300- (Enter a numeric response using an integer.) Cost or benefit (dollars per ton) 250- 200- 150 100 50- Marginal Benefit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Reductions in water pollution (million tons)