Final answer:
The Accidental Death Benefit Rider pays a beneficiary a death benefit that is double or triple the face amount if the insured's death was caused by an accident as defined in the policy.
Step-by-step explanation:
The rider that pays a beneficiary a death benefit that is double or triple the face amount if the insured's death was caused by an accident as defined in the policy is the Accidental Death Benefit Rider. This rider is added to a life insurance policy to provide extra coverage in case of accidental death. For example, if the face amount of the policy is $100,000, the beneficiary would receive $200,000 or $300,000 if the insured's death is accidental.