Which one of the following is commonly referred to as the brain of any

Which one of the following is commonly referred to as the brain of any computer system ?

Arithmetic Logic Unit
Central Processing Unit
Control Unit
Application Server
This question was previously asked in
UPSC CISF-AC-EXE – 2017
The Central Processing Unit (CPU) is considered the brain of the computer because it performs the primary calculations, executes instructions, and manages the flow of data within the system.
The CPU is responsible for processing most of the data in a computer.
The Arithmetic Logic Unit (ALU) and the Control Unit (CU) are integral parts of the CPU, performing specific functions within it. The Application Server is a type of server that hosts user applications.