Option 1.
Upon his or her death, his or her pension shall be continued throughout the life of and paid to his or her beneficiary, or
Option 2.
Upon his or her death, one-half of his or her pension shall be continued throughout the life of and paid to his or her beneficiary, or
Option 3.
Upon his or her death, his or her pension shall be continued throughout the life of and paid to his or her beneficiary, provided that in the event his or her designated beneficiary predeceases him or her, then his or her pension shall be adjusted effective the first day of the month following the month in which his or her designated beneficiary died to the amount determined pursuant to subsection 2 or 3 of this section at the time of his or her retirement, or
Option 4.
Upon his or her death, one-half of his or her pension shall be continued throughout the life of and paid to his or her beneficiary, provided that in the event his or her designated beneficiary predeceases him or her, then his or her pension shall be adjusted effective the first day of the month following the month in which his or her designated beneficiary died to the amount determined pursuant to subsection 2 or 3 of this section at the time of his or her retirement.
Option 5.
Prior to age sixty-two the member will receive an increased pension, where the total pension prior to age sixty-two is approximately equal to the pension after age sixty-two plus the member's estimated federal Social Security benefit, provided that the reduced pension after age sixty-two is not less than one-half the pension the member could have received had no option been elected.
A member may elect a combination of option l and option 5, or option 2 and option 5. The survivor benefits payable to a beneficiary, other than the spouse of the retired member, under any of the foregoing options shall in no event exceed fifty percent of the actuarial equivalent of the pension determined pursuant to subsection 2 or 3 of this section at the time of retirement.
§ 169.460, RSMo