Your company exchanges information with other companies by using XML and Web services. Your manager asks you to remove a schema collection that is no longer used. Before dropping the schema, you should confirm that it is no longer in use.
You need to use a catalog view to determine if the schema collection is being used. Which catalog view should you use?

A.
sys.xml_schema_components

B.
sys.xml_schema_namespaces

C.
sys.xml_schema_collections

D.
sys.column_xml_schema_collection_usages