Consider a Population with the Following Givens: 1) 75% Cooperators

Consider a population with the following givens: 1) 75% cooperators and 25% defectors,
2) a 8 unit payoff goes to cooperators who interact with another cooperator,
3) a zero unit payoff goes to a cooperator who interacts with a defector,
4) the cost of knowing which is which is 2
If the population balance falls below 75%

A) It will no longer make sense for cooperators to pay the price of scrutiny
B) Defectors will have a higher payoff
C) Cooperators will all pay the cost of scrutiny
D) Less than 75% of the cooperators will pay the cost of scrutiny