Which of the following is true about comparative negligence andcontributory negligence?a. They are two names for the same defense.b. To avoid liability for an unintentional tortthe defendant must prove the presence of both defenses.c. Comparative negligence is used withintentional torts and contributory negligence is used withunintentional torts.d. Comparative negligence allows the plaintiff tomake a partial recovery whereas contributory negligence doesnot.