Consider the three period (N - 3) binomial model with So 4, the "up factor"2, the "down factor" d-1/2 and the risk-free interest rate is r-1/4. Draw the binomial tree and find the time-zero price and optimal exercise time for the path dependent American option whose intrinsic value at each time t -n is This intrinsic value corresponds to a put option on the average stock price between time t = 0 and time t = n. determine the optimal stopping time. Consider the three period (N - 3) binomial model with So 4, the "up factor"2, the "down factor" d-1/2 and the risk-free interest rate is r-1/4. Draw the binomial tree and find the time-zero price and optimal exercise time for the path dependent American option whose intrinsic value at each time t -n is This intrinsic value corresponds to a put option on the average stock price between time t = 0 and time t = n. determine the optimal stopping time