Need help plz

Aplia Homework: Externalities and the Environment Spring is here, and Kevin and his uncle would like to go fishing for the weekend in Vermont. Kevin could either go to the river in town where anyone can fish without a permit, or he could drive up to a pond located on his family's property PRIVATE in the countryside to fish. Assume that, no matter where PROPERTY people fish, all of the fish that are caught would be kept (that is, there is no "catch and release" policy). The fish in the private pond are considered and , whereas the fish in the river are consider and . In other words, the fish in the private pond are an example of , and the fish in the river are an example of Fishing in the river will likely lead to because of which of the following reasons? Nobody will enjoy fishing because of the lack of private contributions to the maintenance of the river. All fishermen will choose to fish in the pond believing that there are more fish there. Anyone can fish in the river, and as long as the marginal benefit of catching more fish exceeds the marginal cost, fishermen have little regard for the effects of their catch on the sustainability of fishing stocks. All fishermen will choose to fish in the river because of the limited access to the pond