Answer:
Pension benefit plan
Explanation:
A pension benefit plan is one where an employee promises to make a lump payment or a series of payments to an employee on retirement.
There is a guaranteed payment for the employee upon retirement.
It includes employee's pay, years of employment, and age at point of retirement.
As the pension benefit plan takes into consideration the number of years served by the employee it will be a perfect fit for Mr. Reuben's staff.
