The correct answer is: C. Application software.
Microsoft Word is a word processing program that allows users to create and edit documents. It is an example of application software, which is a type of software that is designed to perform a specific task. Other examples of application software include spreadsheets, databases, and presentation software.
Operating systems, such as Windows and macOS, are a type of software that controls the basic functions of a computer. Processing devices, such as CPUs and GPUs, are hardware components that perform calculations. Input devices, such as keyboards and mice, allow users to input data into a computer. System software is a type of software that is used to manage the computer’s hardware and software resources.