3. The payoff matrix below shows how annual prots of two major computer sellers, Dell and Sony. will vary with and without advertising. a. Are there dominant strategies for both firms? Explain. b. What is the Nash equilibrium? C. Is this game a prisoner's deliema? Dell's strategies Advertise Don't Advertise ' Dell's prot: 12 million Dell's profit 6 million Sony's Advertise strategies Son 5 u rot: 20 million Son 5 - rot: 23 million ' Dell's prot: 13 million Dell's profit 8 million Don't Advertise Son 5 rofit: 14 million Son 5 urot: 35mi||ion