Explanation:

MS-Word is a word processing program designed to perform specific tasks for the user, such as creating, editing, and formatting documents. This functionality categorizes it as application software. Application software is designed to perform specific user tasks, while system software manages and controls computer hardware and software resources (e.g., operating systems, device drivers). MS-Word does not perform these core system management functions. Therefore, it is exclusively application software. Option (a) is incorrect because system software handles core system operations. Option (c) is incorrect as MS-Word is purely application software. Option (d) is incorrect because (b) is true.