Moving target (8 marks total) Consider a two player normal-form game with the following payoff matrix (Player 1's payoff is listed first): Player 2 Player 1 L R U (a, b) (1, 3) D (4, 2) (0, 1) (a) (2 marks) For which values of a and b is the strategy profile (U, L) a Nash equilibirum? (b) (2 marks) For which values of a and b is the strategy profile (D, L) a Nash equilibrium? (c) (4 marks) Let 1 = 1 2 U 1 2 D and 2 = 1 2 L 1 2 R. For which values of a and b is the strategy profile (1, 2) a mixed strategy Nash equilibrium