Which of the following is the namespace you should include in your code?

You are employed as a developer at ABC.com. ABC.com has an Active Directory domain, named ABC.com.
ABC.com manages numerous files via SharePoint, with the Document ID Service feature
activated. You are preparing to write code that generates a custom class that allows for a unique
ID to be created for every file.
Which of the following is the namespace you should include in your code?

A.
The Microsoft.Office.DocumentManagement.DocumentSets namespace.

B.
The Microsoft.Office.DocumentManagement namespace.

C.
The Microsoft.Office.DocumentManagement.Server namespace.

D.
The Microsoft.Office.DocumentManagement.MetadataNavigation namespace.

Explanation: