can you help me to explain the reason? thanks!

mama 5200 Fee $200 Fim2 Femte 500 more ab F1 Fum 100 Part 2 Short Answer Questions (40%) Q1. (18%) Two players, Firm 1 and 2, are playing a sequential game. Firm 1 is the first mover, while Firm 2 is the second, Firm 1 has two strategies (X and Y), and Firm 2 has two strategies (X and Y). The payoff of each player can be shown on decision tree. a) (3%) Is there a Nash equilibrium in this game? If so, what is it? b) (3%) Does either player have a dominant strategy? Why or why not? c) (6%) Suppose that Firm 2 is the first mover, and Player 1 is the second. Is there a Nash equilibrium in this game? If so, what is it? d) (6%) Suppose that each player chooses simultaneously. As there a Nash equilibrium in this game? If so, find all of the game's Nash equilibria in pure strategies. (Hint: you should use payoff matrix to find it) , Fum 2 Fem lume 3100 Fum 2 cams $100 lollar in this gare, filt) Y , ire - X &7