Suppose There Are Two Small Island Countries: Avarice, Which Is

Suppose there are two small island countries: Avarice, which is populated by people who are completely self-interested, and Altruism, which is populated by people who have adopted social norms of generosity and cooperation. Suppose residents of each island often play prisoner's dilemma games, always matched with a person from the same island, but not a person who they know or will play with again. If the same number of games is played on each island, you would expect:

A) the residents of Avarice to have higher average payoffs than the residents of Altruism.
B) players on both islands to quickly converge to playing their dominant strategies.
C) the residents of Altruism to have higher average payoffs than the residents of Avarice.
D) players on both islands to quickly converge to playing their dominated strategies.