Answer:
Option d. Fixed period
Explanation:
time is very essential. Anytime the policy owner specifies payment to be guaranteed for a specific period regardless of who is the beneficiary, policy owner or who receive the payment,is the fixed period settlement option.
Anything that occur  to annuity after the owner's death is dependent on the type of annuity and its payout plan.
A fixed-period,  is that which is for a certain period of time. the annuity guarantees payments to the annuitant for a set length of time. example is about  10, 15, or 20 years and case payments will continue to be paid to the beneficiary until the time given or  period is due or when  account’s balance reaches zero.