all of the following are true regarding a cash refund annuity settlement option except?
a) It provides a guaranteed income for the annuitant's lifetime.
b) If the annuitant dies before receiving the full principal amount, the remaining amount is refunded to the beneficiary.
c) It offers a lump sum payment to the annuitant at the beginning of the annuity period.
d) The cash refund option provides a measure of financial protection for the annuitant's beneficiaries.