You need to enable the coauthoring of documents in the …

Your company uses Microsoft SharePoint Online for collaboration.
A document library is configured as shown in the following table.

You need to enable the coauthoring of documents in the library.
What should you do?

A.
Change the Who should see draft items in this document library? setting to Any user who can read items.

B.
Change the Create a version each time you edit a file in this document library? setting to No Versioning.

C.
Change the Require documents to be checked out before they can be edited? setting to No.

D.
Change the Require content approval for submitted items? setting to No.

Explanation:
The question states that coauthoring of documents in the library is required. Coauthoring means the ability of
multiple people to be able to edit a document simultaneously.
One way to control document collaboration is to require check-out of files, especially when multiple users have
access to the library. If you have a file checked out, you can be sure that other people cannot overwrite it.
However, you are also preventing other people from seeing the latest changes or making changes themselves.
Do not configure your library to require checkout if people plan to co-author documents in the library. People
cannot work simultaneously on documents when required check-out is turned on.