4. (10 points) Suppose that Victor and Isabella are playing the following two player simultaneous move game. Victor chooses either up (u), or down (d). Isabella chooses either left (/) or right (r). The table below gives the payoffs to Victor and Isabella given any set of choices, where Victor's payoff is the first number. There are payoffs provided for the simple game being played 3 times. Game 1 Game 2 Game 3 1,1 1,5 3,7 5.0 10,10 8,2 0.5 2,2 9,1 d.r 4,4 5,1 5,6 a) Write down each of these games in normal form (payoff matrix). b) What is the pure strategy Nash equilibrium for each game