Components of a control system may include:

A) sensors.
B) actuators.
C) Human-Machine Interface (HMI) .
D) all of these.

Human-Machine Interface

The user interface in industrial control systems that allows humans to interact, monitor, and communicate with machinery and processes.

Actuators

Devices that convert electrical signals into physical movement or action, often used in industrial machinery to move or control mechanisms.

Sensors

Devices that detect and respond to some type of input from the physical environment, such as temperature, light, pressure, etc.