Suppose you believe that Florio Company's stock price is going to decline from its current level of $82.50 sometime during the next 5 months. For $5.10 you could buy a 5-month put option giving you the right to sell 1 share at a price of $85 per share. If you bought this option for $5.10 and Florio's stock price actually dropped to $60, what would your pre-tax net profit be?

a. $27.60

b. $20.90

c. $19.90

d. $22.50

e. $5.10