Under which access control system is each piece of information and every system resource (files, devices, networks, and so on) labeled with its sensitivity level? A. Discretionary access control B. Resource access control C. Mandatory access control D. Media access control

C. Mandatory access control

Explanation:

In the implementation of computer security, the mandatory access control (MAC) refers to the implementation of a security feature by operating systems. In this method, individual resource owners' are unable to deny or grant permissions to a resources contained in a file. The criteria in a MAC when defined by the system administrator is implemented and enforced by the OS.