Access control is the collection of mechanisms that permits managers of a system to exercise
influence over the use of:

A.
A man guard

B.
An IS system

C.
A threshold

D.
A Trap

Explanation:
Access control is the collection of mechanisms that permits managers of a system to
exercise a directing or restraining influence over the behavior, use, and content of a
system. It permits management to specify what users can do, which resources they can
access, and what operations they can perform on a system.