Which of the following operating systems is MOST likely to be found on a desktop where its primary functions include professional video and audio editing?

Chrome OS is a lightweight operating system primarily designed for web-based tasks and lacks the local processing power and specialized software for professional video and audio editing.

Windows 7 Home is an older operating system, and while Windows generally supports editing software, the Home edition might lack some professional features, and newer Windows versions or macOS are generally preferred for current professional work.

Mac OS X (now macOS) has historically been a strong platform for creative professionals, including those in video and audio editing, offering a stable environment and optimized software like Final Cut Pro and Logic Pro. Its hardware and software integration often provides excellent performance for these demanding tasks.

iOS is a mobile operating system designed for Apple iPhones and iPads, not a desktop operating system suitable for professional video and audio editing with a full desktop suite.