A. The surviving spouse, the minor children, or the dependent parents of any retired member who dies shall receive as a pension seventy-five percent of the monthly retirement pay which was being paid to the member prior to his death, in the following order of priority:
(1) The surviving spouse.
(2) The minor children of the deceased member, in the same manner and for the same length of time as provided in R.S. 11:588.
(3) The parents of the deceased, if they furnish to the board satisfactory proof that they were deriving their main support from the deceased member.
B. Remarriage of the surviving spouse acts as a forfeiture of her right to receive any further benefits hereunder.