Section 24-51-1718 - Option B(1) Option B is an installment refund annuity, which is defined as a smaller sum of money than the amount that would be payable under option A but that is the actuarial equivalent thereof, as provided in this retirement plan, payable monthly to an annuitant from the time of retirement until death, with the additional provision that if said annuitant dies before receiving an amount equal to the total reserve credited to said annuitant, said payments shall be continued to beneficiaries designated by said annuitant until the total amount of the payments made to such annuitant and to beneficiaries of said annuitant is equal to the total amount of reserve allocated to the payment of said annuitant's retirement allowance.(2) If a deceased member's estate is the beneficiary, payment in one sum of the commuted value of the retirement allowance shall be made to the member's estate. The rate of interest used in determining the commuted value shall be the actuarial investment assumption rate of the association on the date of death of the member.(3) In the event of the death of a retired deceased member's beneficiary who is receiving monthly benefits under option B, a payment in one sum of the commuted value of the remaining monthly payments shall be made to the estate of the deceased beneficiary. The rate of interest used in determining the commuted value shall be the actuarial investment assumption rate of the association on the date of death of the beneficiary.L. 2009: Entire part added, (SB 09 -282), ch. 288, p. 1370, § 56, effective 1/1/2010.