(aTThe table below shows the payoff matrix in terms of prot for two stalls, A and B, with two pricing strategies, high price and low price. Stall B High Price Low Price Stall A High Price $20m for Stall A $30m for Stall A $8.5m for Stall B $6.5m for Stall B Low Price $7.5m for Stall A $25m for Stall A $50m for Stall B $40m for Stall B Solve for the Nash equilibrium and explain whether this game is a prisoner's dilemma game. (b) If the game becomes a sequential game where Stall A gets to move first, construct a decision tree diagram and solve the game using roll-back method. Explain your