Answer it if you are 100% sure otherwise I'll downvote

Two countries are in dispute. Country B considers to attack to or retreat against Country A, about which it does not have a complete information. Country B is not sure whether Country A has nuclear power or does not. On the other hand, Country A has complete information about nuclear power status of country B . Country A also has the same options, attract or retreat. COUNTRY A COUNTRY B A R A R 4,0 2,1 0,2 2,0 A A 1,3 1,1 R 2,2 0,3 R Nature draws equal probabilities for nuclear status possibilities of country A . a-) Which matrix specifies that country A has nuclear power. b-) Find best response fuctions. c-) Analyze whether there is pure strategy Bayesian separating equilibrium.Two countries are in dispute. Country B considers to attack to or retreat against Country A, about which it does not have a complete information. Country B is not sure whether Country A has nuclear power or does not. On the other hand, Country A has complete information about nuclear power status of country B . Country A also has the same options, attract or retreat. COUNTRY A COUNTRY B A R A R 4,0 2,1 0,2 2,0 A A 1,3 1,1 R 2,2 0,3 R Nature draws equal probabilities for nuclear status possibilities of country A . a-) Which matrix specifies that country A has nuclear power. b-) Find best response fuctions. c-) Analyze whether there is pure strategy Bayesian separating equilibrium