(1Upt) Use the Cox-Koss-Kubinstein scheme and draw a 4-period binomial tree to price an American put option based on an underlying asset price St. The initial asset price (So) is $100, the asset volatility (0) is 10%, the risk-free rate (r) is 5%, the option's strike price (K) is $101, and the option's time to maturity (T) is 6 months. (1Upt) Use the Cox-Koss-Kubinstein scheme and draw a 4-period binomial tree to price an American put option based on an underlying asset price St. The initial asset price (So) is $100, the asset volatility (0) is 10%, the risk-free rate (r) is 5%, the option's strike price (K) is $101, and the option's time to maturity (T) is 6 months