The prisoners’ dilemma is a game that shows us:

2 Activities

The prisoners’ dilemma is a game that shows us: 

rational people will naturally avoid the Nash equilibrium because it is worse for both of them

even if cooperation is better than the Nash equilibrium, each person might have an incentive not to cooperate

even if the cooperative outcome is better than the Nash equilibrium for one person, it might be worse for the other

the cooperative outcome could be worse for both people than the Nash equilibrium

I don't know