Remy Suggests That He and His Friend Quentin Snowboard Down

Remy suggests that he and his friend Quentin snowboard down a mountain in tandem.Quentin initially refuses,but eventually begrudgingly agrees.During the run,they fall and Quentin suffers an injury.He is now suing Remy for negligence.Which of the following is Remy's best defense?

A) Contributory negligence because Quentin stepped into a dangerous situation
B) Volenti because Quentin expressly agreed to accept the physical and legal risk
C) Illegality because it is illegal to ride snowboards in tandem
D) Contributory negligence because Quentin contributed to the damage caused by the accident
E) Remy has no defense,he should settle before court