Brad is troubleshooting a performance issue with a computing system and quickly realizes that the system resources are being managed inappropriately. He also learns that the system in question is running in pre-emptive multitasking mode. Which of the following entities is responsible for the resources?

A.
The application that is running

B.
The operating system

C.
The collection of users accessing the system

D.
Input/output devices

Explanation:
A system that is operating in pre-emptive multitasking mode uses the
operating system to manage the resources.