Return to the game of promotion and sabotage in Section 4.4. a. Determine whether the following…

Return to the game of promotion and sabotage in Section 4.4.

a. Determine whether the following strategy profile is a Nash equilibrium; (i) player 1 is negative against player 2, (ii) player 2 is negative against player 3, and (iii) player 3 is negative against player 1.

b. Find a Nash equilibrium in which player 2 wins the promotion with certainty (probability 1).