A repository has a custom object type, my_report, which descends from dm_document. A user
wants to find all versions of dm_document and my_report objects checked out by them.
How can the user complete the following query to accomplish this?
select * from _____ where r_lock_owner=user

A.
dm_document

B.
dm_document (all)

C.
dm_document descend

D.
dm_document or my_report

Explanation: