An investor sells a November call option with a strike price of $100 for $15. The underlying stock is trading at $90. (a) Write down the profit equation for the short call as a function of stock price (S.) in November. (b) What stock price (S) at expiration leads to maximum loss to the call option seller? (c) At what stock price (S.) at expiration does the call seller break even? Draw the short call profit graph as a function of S. (25 points)