Grirn Trigger: Consider the innitely repeated game with discount factor 5 a: l ofthe following variant of the Prisoner's Dilemma: Player 2 Player 1 M a. For which values of the discount factor 3 can the players support the pair of actions (M, C ) played in every period?I b. For which values of the discount factor 3 can the players support the pair of actions (T, L} played in every period? Why is your answer different from that for {a}