d) Consider stock XYM. Its price is $100, the monthly interest rate is 0.5%, and a put option on XYM with maturity in 5 months is currently priced at $5. Strike price of this option is $90. The price of a call option with the same maturity and strike price of the put option is currently priced at $20. Is this an arbitrage opportunity? If yes, explain how to take advantage of it and provide a cash flow diagram showing your strategy. (7 marks)