What should the conditional visibility be based on to minimize the amount of future maintenance?

An application is being constructed in multiple phases for a growing company that has over 1000 employees. During the initial development stages. It is determined a button on section has to be made conditionally visible based on a group of actors.

What should the conditional visibility be based on to minimize the amount of future maintenance?
A . AccessGroup
B . Privilege
C . Role
D . Work group

Answer: A