In the Fish Waste to Community Wealth article, how was the negative externality converted to a positive externality? Question 21 Answer a. The local government made the fishers pay a tax equal to the size of negative externality. b. The beaches were privatized and sold to the fishers, so the externality was internalized. c. A new beach cleaning program eliminated the negative externality at the source. d. A program that uses distributes fish waste as fertilizer made it so that the marginal social benefit exceeded the marginal private benefit of fishing