help on third question

. Sears is selling at $10/share. You can get a 3-month call option with an $11 strike price for $1.50 You buy 100 options and at expiration Sears is selling for $15. What is the payoff? $400 What is the profit? $250 If instead you had invested in the stock, what would your profit be? 15 shares of stock give $75 profit