A. A bank which maintains a retirement plan may pay
(1) retirement benefits in reasonable amounts to employees whose employment has heretofore terminated or shall hereafter have terminated, and who are not entitled, for any reason, to receive payment of benefits under a retirement plan in operation; and
(2) reasonable amounts to employees whose employment has heretofore terminated or shall hereafter have terminated, and who are entitled to receive payment of retirement benefits under a retirement plan in operation, but whose benefits under such plan are, in the opinion of the board of directors, inadequate.
B. A bank which maintains no retirement plan, may pay retirement benefits in reasonable amounts to employees whose employment has heretofore terminated or shall hereafter have terminated. A bank may make any payment pursuant to this subsection which it could lawfully make if it maintained a plan under this act.