For each one of the following normal-form games find (a) The pure-strategy Nash equilibria and their payoffs; (b) The mixed-strategy Nash equilibria. (c) Are there any equilibria in dominant strategies? If yes, which ones?

C D I. A 50, -50 100, 0 B 0, 100 0,0 C D II. A 3, 3 0,0 B 0,0 1, 1 C D III. A 2, 5 8, -1 B 4, -8 -2, -3 C D IV. A 10, 10 -2, -7 B 1, -5 1, 1