Before July 1, 1993, if a qualifying member dies at any time before completing the age and service requirements for service retirement, the payment of ordinary death benefits is governed as follows. Beginning July 1, 1993, if a qualifying member dies before the member's service retirement benefit becomes effective, the payment of ordinary death benefits is governed as follows. In either case, the member's beneficiary may select only one of the death benefits. [1991, c. 469, §2 (AMD).]