1. What is your risk-free arbitrage profit available if a six-month option pair has a strike price of $150, a spot price of $147, a call premium of $10, a put premium of $11, and the risk-free rate is 6%?
2. What should you do if you come across a 2-year option pair with a strike price of $100, a spot price of $100, a call premium of $22, a put premium of $15, and the risk-free rate is 5%?