Consider the game consisting of three players (Player 1, Player 2, and Player 3), who choose actions a1, a2, and a3, respectively. Suppose that best responses are given by the following: a1 = 20 - a2 + a3 a2 = 10 + a1 - a3 a3 = .5a1 + .5a2 What are the equilibrium values for a1, a2, and a3, respectively? a1=15, a2=25, a3=20 a1=20, a2=15, a3=25 a1=25, a2=15, a3=20 a1=20, a2=15, a3=25