The Environmental Protection Agency is attempting to rule on whether pollution from greenhouse gas emissions endangers public safety. Among the many greenhouse gas polluters are cows emitting methane. Economists have devised a theory to help address this issue. Identify the statement that is true according to economic theory a. Environmental standards regarding cow-generated methane creates strong incentives for the farmer to reduce as much as possible. b. If the cost of paying a pollution charge (tax on bovine methane emissions) is less than the cost of reducing pollution, the farmer will have an incentive to reduce pollution. c. To maximize social welfare, all pollution should be removed. d. The efficient level of pollution removal occurs where the marginal benefit of pollution removal equals the marginal cost of pollution removal (some pollution could be allowed). e. The benefit of pollution cleanup to society is always less than the cost of pollution cleanup, especially if all costs are borne by the producer (which means the farmer, but technically, the cows are doing the producing).