Please answer the following question

(EXERCISE 27.2 (Selfish and altruistic social behavior) . Two people enter a bus. Two adjacent cramped seats are free. Each person must decide whether to sit or stand. Sitting alone is more comfortable than sitting next to the other person, which is more comfortable than standing. a. Suppose that each person cares only about her own comfort. Model the situ- ation as a strategic game. Is this game the Prisoner's Dilemma? Find its Nash equilibrium (equilibria?). 34 Chapter 2. Nash Equilibrium: Theory ically examine each action profile individually, as we did for games in which each player has two actions. Instead, you can consider groups of action profiles that have features in common, and show that all action profiles in any given group are or are not equilibria. Deciding how best to group the profiles into types calls for some intuition about the character of a likely equilibrium; the exercises contain suggestions on how to proceed