What handles all access between objects and subjects in the computer kernel?
A: User mode.
B: Supervisor mode.
C: Reference monitor.
D: Superuser mode.
CBK 3: Security Engineering
Source: ThorTeaches.com practice tests – https://www.udemy.com/user/thorpedersen/
C: The Kernel At the core of the OS is the Kernel. At ring 0 (or 3), it interfaces between the operating system (and applications) and the hardware. Microkernels are modular kernels. The reference monitor is a core function of the kernel; it handles all access between subjects and objects. It is always on and can’t be bypassed.