Tom Hank buys 150 shares of J.W stock for $85 per share and a three-month J.W call option with an exercise price of $105 for $15. What is his dollar gain if the stock is selling for $80 per share at expiration?

a) $500 gain

b) $750 loss

c) $3000 loss

d) $2250 loss

e) $6750 gain