2. In the multiperiod binomial model with N 3, % 4,u 2, d 0.5, r 0.25, find the time 0 price and the optimal exercise policy of the American option with payment function g(s) (s- 4)+. The holder of this American option can exercise it at any time n, n 0,1,2,3, and receive the payoff Vn g(Sn). (2 points) 2. In the multiperiod binomial model with N 3, % 4,u 2, d 0.5, r 0.25, find the time 0 price and the optimal exercise policy of the American option with payment function g(s) (s- 4)+. The holder of this American option can exercise it at any time n, n 0,1,2,3, and receive the payoff Vn g(Sn). (2 points)