What Type of Control Activity Is Implemented to Prevent Malicious

What type of control activity is implemented to prevent malicious actions against company systems and data?

A) All employee issued technology, including storage devices, are collected at the exit interview.
B) Company credit cards are collected from the employee, paid, and closed at the end of the billing cycle.
C) Employee access to the system is disabled immediately upon termination.
D) Terminated employees sign a noncompete agreement during the exit interview.