The correct answer is C. Manages the resources of the Computer.
An operating system is a program that manages a computer’s resources, such as the CPU, memory, and storage. It also provides a user interface, which allows users to interact with the computer.
Option A is incorrect because a word processor is a program that helps users create and edit documents.
Option B is incorrect because a database management system is a program that helps users store and manage data.
Option D is incorrect because a spreadsheet program is a program that helps users perform calculations and analyze data.