. Suppose a stock is trading at $120 per share. There are both European put and call options written on this stock. Both options expire in four months and both have a strike price of $110. If the price of the call option is $15, what is the price of the put option? The risk-free rate is 4% per year, compounded monthly.

5. Suppose that the put option in the previous problem is trading at $3 per contract. As you can verify, this means that there is an arbitrage opportunity. Describe the trades that you would need to make to take advantage of this opportunitythat is, what to buy, sell, or put and how much to borrow or lend.