The correct answer is D. System diagnostics.
System diagnostics is a program used to detect overall system malfunction. It can be used to identify and troubleshoot problems with the hardware, software, and drivers on a computer. System diagnostics can also be used to generate reports on the health of a computer system.
System analysis is the process of studying a system to understand its components, how they interact, and how they can be improved. System analysis is often used to design new systems or to improve existing systems.
System software is the software that controls the operation of a computer system. System software includes the operating system, drivers, and other programs that are essential for the computer to function.
Utilities are programs that perform specific tasks, such as formatting disks, copying files, and compressing data. Utilities are not essential for the computer to function, but they can be helpful in performing certain tasks.
None of the above is not the correct answer.