an investor buys 2 shares of stock of 55 per share and sell a call option on the stock with strike price of 60 for a premium of 2 and buys a put on the stock with a strike price of 50 for a premium of 3. option are for a single share of stock each and expire the same day. what's the profit of investors strategy when market price of stock is at 51.5 at the expiry date of the option