6. (16%) John bought 100 shares of CBOE at $25.5/share a few days ago. The current market information is: CBOE's stock price = $26.87; CBOE March 26 (strike price) European put option premium = $1.00. John buys one European put option contract today to hedge his stock position. (a) (3%) Find the breakeven stock price for the protective put strategy (100 shares and one put option contract). (b) (3%) If CBOE's stock price = $23/share at option expiration, calculate John's return (%) in terms of both the final portfolio value at option expiration and the total cost (long 100 shares and one put option contract). (c) (3%) Without buying the put option contract, calculate John's return (%) for buying CBOE shares if CBOE's stock price = $23/share at expiration (long 100 shares only). (d) (4%) Find the maximum loss ($) at option expiration for the protective put strategy, (e) (3%) If the risk-free rate r=2% per annum and the time to expiration=1 year, use the current market information to find CBOE March 26 European call option price (per unit)