The market price of a security can be modelled by assuming that it will either increase by 25% or decrease by 15% each month, independently of price movement in other months. No dividends are payable in the next two months. The continuously compounded monthly risk-free rate of interest is 1%. The current market price of the security is 127. a.) Use the binomial model to calculate the value of a two-month European put option on the security with strike price of 125. b.) Calculate the value of a two-months American put option on the same security with the same strike price. c.) Calculate the value of a two-months American call option on the same security with the same strike price