The correct answer is C. CPU.
The CPU is the brain of the computer. It is responsible for carrying out the instructions that are stored in the computer’s memory. The CPU is made up of millions of tiny transistors that work together to perform calculations.
RAM is the computer’s short-term memory. It stores the data that the CPU is currently working on. RAM is volatile, which means that it loses its contents when the computer is turned off.
ROM is the computer’s permanent memory. It stores the instructions that the computer needs to start up and run. ROM is non-volatile, which means that it retains its contents even when the computer is turned off.
Storage devices are used to store data permanently. They can be used to store programs, files, and other data. Storage devices include hard drives, solid-state drives, and optical drives.
E. None of the above is not the correct answer because the CPU is the part of the computer that controls everything that the computer does.