Which of the following is an example of system software?

System software refers to the type of software designed to operate and control the computer hardware and to provide a platform for running application software. It serves as an intermediary between the user and the computer hardware.

In this case, MacOS is the correct answer because it is an operating system that manages all the hardware and software resources on a computer, allowing other applications to function. Operating systems like MacOS provide the essential foundational capabilities required for hardware management, file system organization, and user interface control.

The other options represent application software, which is designed for end-users to perform specific tasks rather than managing the hardware or software environment. Photoshop is used for image editing, Microsoft Word for word processing, and Google Chrome is a web browser, all of which rely on the underlying system software to function but are not considered system software themselves.