_. _ __ ___ __-._ __ .- D'-'__' 4. (26 points) Consider the following signaling game: 1,2 0,1 2,1 1,2 2,1 3,0 3,0 2,0 2,1) 1,2 1,1 1,1 (a) Find all pooling equilibiia of this game and verify that each is in- deed a weak sequential equilibrium. (If there is none, explain why.) Present and explain all of your steps clearly. (1)) Find all separating equilibria of this game in which player 2 plays a mixed strategy at the left information set and each type of player 1 plays a pure strategy. Cerify that each is indeed a weak secluential equilibrium. (If there is none, explain why.) Present and explain all of your step\"; clearly