Consider an industry with 2 firms. Each may either 'cooperate' with its rival or 'cheat' in each period of play. If both cooperate, they earn $100 each in that period. If only A firm cheats, it earns $150 in that period, but firm B earns $50. If only Firm B cheats, it earns $150 in that period, but A earns $50. If both cheat, each earns $30 in that period. Construct the payoff matrix for a single period game.