Suppose you believe that Johnson Company's stock price is going to increase from its current level of $40 sometime during the next 5 months. For $400 you can buy a 5-month call option giving you the right to buy 100 shares at a price of $60 per share. If you buy this option for $500 and Johnson's stock price actually rises to $70, would you exercise your call option? AND what would be your pre-tax net profit or loss from holding this option?