please answer A and B

4. 21 pts Consider a subtraction game with subtraction set S = {1,4} starting with 6 chips. Player I goes first, and if Player I is the last to remove a chip, then Player II pays one dollar to Player I; if Player II is the last to remove a chip, then Player I pays one dollar to Player II. (a) Find the payoff matrix for this game. (b) Find vand ut. 4. 21 pts Consider a subtraction game with subtraction set S = {1,4} starting with 6 chips. Player I goes first, and if Player I is the last to remove a chip, then Player II pays one dollar to Player I; if Player II is the last to remove a chip, then Player I pays one dollar to Player II. (a) Find the payoff matrix for this game. (b) Find vand ut