a. The common stock of BOK currently trades at $50 per share. The stock pays no dividends. A 3-month BOK call option with exercise price of $50 sells for $3.5. The market interest rate is 10% annually. According to put-call parity, determine the price of an at-the-money BOK put option which will expire in 3 months. Assume that there are no transaction costs. (4 marks) b. A GPPLE call option with strike price of $55 sells for $1.5. The option will expire in a month. Surprisingly, a GPPLE call option with the same maturity but strike price of $60 also sells for $1.5. Assuine there are no transaction costs. Suppose you plan to hold the options position to maturity. Explain if there is an arbitrage opportunity and devise a zero-net-investment trading strategy to exploit the opportunity. (6 marks) ii. Draw a well-labeled profit and loss diagram at maturity for your position. (4 marks)