Which entity corresponds to a user job or application that owns resources such as memory and open les?
a. task
b. process
c. thread
d. token

B. Process

Explanation:

Process is actually executed by one or many threads and often represents an instance of a computer program.

For a process to run and execute it needs to have its own resources such as memory and other hardware requirements for that particular process to execute.

The number of active processes in a windows system can be seen by opening the task manager. Many of the processes runs in the background with each of them having access to its ample resources specific to that particular user job. They have their own memory requirement, ram requirement and other accesses.