What is the rationale behind the development of an operating system in computing?

A development of an operating system in computing is to enable the user to manage the programs and data both hardware and software in the course of their computer projects. For example, having the Snip option enables one to copy an illustration in a pdf file that otherwise could not be extracted from that file or only with difficulty. Having folders enables one to file documents under the same category for ease of file management, or having say in the Microsoft operating system a "Documents" file v a "Download" file helps to organize files as well. Also, within these, being able to organize files chronologically, alphabetically or by author or subject helps as well. 

Answertry;

B. newspapers for sure! i had this question and got it right. hope this xx