BXP is currently trading at $120/share. You bought 6 CALL-option contracts on BXP with a strike price of $100 for $26.0 each and sold 6 CALL-option contracts on BXP with a strike price of $135 for $7.0 each.

a. What will be your total $ and % gain/loss if BXP price is $120 at the expiration date?

b. What will be your total $ and % gain/loss if BXP price is $140 at the expiration date?

c. What will be your total $ and % gain/loss if BXP price is $105 at the expiration date?