5. Two chemical companies, Proton and Neutron, have been accused by the Environmental Protection Agency of leaking chemical wastes into a nearby stream. Each company is trying to decide whether to admit guilt or whether to fight the accusation in court. The (negative) payoffs (fines and/or court costs in millions) are as follows: Proton Admit Guilt Fight Accusation Neutron Admit S-5 \\ $-6 Guilt S-5\\ S-1 \\ Fight $-4 $-2 Accusation $-6 $-2 a. Is there a Nash Equilibrium? b. Is this "game" an example of the Prisoner's Dilemma