(A) This rule amplifies section 9.03(e) of the combined plan document and, in the case of a monthly annuity payment option only, sections 9.02 of the combined and member-directed plan documents.

(B) Calculation of the amount due to a retirant receiving a benefit pursuant to a plan of payment under which a portion of the benefit continues, after the death of the retirant, to two, three, or four surviving beneficiaries shall be calculated in accordance with rule 145-2-62 of the Administrative Code.