5. This exercise explores how, in a mixed-strategy equilibrium, players must put positive probability only on best responses. Consider the game in the following figure. 2 L M R U x, X x, 0 x, 0 C 0, x 2, 0 0, 2 D 0, x 0, 2 2, 0 Compute the pure-strategy and mixed-strategy Nash equilibria for this game, and note how they depend on x. In particular, what is the difference between x > 1 and x