Answer:
D. May require losing money fighting the first potential entrant.
Step-by-step explanation:
In this form of gaming, or in this game theory, it is said to be played over and over and could possible be in a probability form that is why that possibly, as a player, you may require loosing money fighting the first potential entrant.
Fighting the first entrant, possibility of cooperating means that their could be a possible compromise in order to carry on accepting a payoff over a certain period of time, knowing that if we do not uphold our end of the deal, our opponent may decide not to either.