Jan Is Running a Bake Sale for the Debate Team

Jan is running a bake sale for the debate team.In order to make enough money for the whole debate team to go to the state championships,at least half of the team has to contribute baked goods for the sale.Jan runs the risk of facing a

A) prisoner's dilemma.
B) tragedy of the commons.
C) replenishing resource management dilemma.
D) public goods dilemma.