What is the correct API syntax for retrieving the r_object_id of a dm_document with the name,
‘test1’?

A.
retrieve,c,dm_folder where object_name=’test1′
B.
id,c,select dm_sysobject where object_name=’test1′
C.
retrieve,c,select dm_document where object_name=’test1′
D.
id,c,dm_sysobject where object_name=’test1′