If someone could explain this to me step by step, it would be awesome thanksss

4-4. Describe all the pure-strategy pooling and separating perfect Bayesian equilibria in the following signaling games. a. 1, 1 2,2 R 2,0 5 d Receiver Nature Receiver 0,0 . 5 1, 0 d L tz R d 1, 1 b. 3, 0 t1 R 1 , 1 d - 5 d 4, 1 Receiver Nature Receiver 3,3 . 5 1, 2 O,1 d L R d 2, 0