Links to the four default folders can be found on the left side of the file explorer window under the heading:
documents
local
desktop
libraries

Libraries

Explanation:

Document itself is a folder and is not a heading by the way.

Local simply means on the machine you are working and does not have default folders.

Desktop is  name of screen which is used as a gateway for using windows.

So, they cannot be correct answers.

Libraries  heading is the answer.

Explanation:

Desktop will display icons, folders and files available on the desktop. It can be ‘n’ in number. So this option does not display four default folders.

Documents: This folder is created during the installation of Windows. It has only the list of documents stored under this folder. This option does not suit.

Local: Local folder contains files to be transferred to the web server. So this option is also weed-off.

Libraries: This contains four default folders namely Documents, music, videos, pictures.

Any system will store files under these category only. Also, Libraries are special folders where an user can access this quickly from anywhere in the computer.

answer; availability;