Which option provides an additional amount of temporary insurance at a reduced cost?

The correct choice provides an additional amount of temporary insurance at a reduced cost because term riders are specifically designed to allow policyholders to add temporary life insurance coverage to an existing life insurance policy. This added coverage is typically offered at a lower premium compared to purchasing a separate term life policy.

Term riders are especially useful for individuals who need extra coverage for a specific time period, such as while raising children or during a mortgage payoff period. They briefly extend the coverage without the need for a new policy, which can be a more economical solution for short-term insurance needs. This flexibility is what makes term riders an appealing option for those looking to enhance their insurance coverage temporarily without significant financial commitment.

In contrast, the other options serve different purposes. For instance, the paid-up option pertains to the accumulation of cash value in a whole life policy, which doesn't directly provide temporary insurance. The cost of living rider adjusts the death benefit in line with inflation but does not necessarily offer extra coverage at a reduced cost. The accidental death rider pays an additional benefit if the insured dies as a result of an accident, but this is specific to accidental circumstances rather than providing broad temporary insurance coverage. Thus, term riders stand out for their specific function of providing temporary insurance at a lower cost.