You plan to add a custom tab to the Ribbon in a SharePoint Web application. You create a

custom Feature that contains an Elements.xml file. You need to ensure that the custom tab only
appears in the document libraries of the Web application. Which code segment should you add to
the Custom Action node of the Elements.xml file?

A.
ShowInLists=”false”

B.
RegistrationType=”List”

C.
Location=”DocumentLibrary”

D.
RegistrationId=”101″