At minimum, which columns in the database are used to join a subtype with its dm_sysobject
supertype?
A.
object_name for the _s tables, r_object_id and r_version_label for the _r tables
B.
authors for the _s tables, r_object_id and i_position_id for the _r tables
C.
r_object_id for the _s tables, r_object_id and i_position_id for the _r tables
D.
r_object_id for the _s tables, r_object_id and keywords for the _r tables