A user wants to add userA as an additional author of a document named “document1.”
Which DQL statement will do this?

A.
update dm_document object set authors = ‘userA’ where object_name = ‘document1’

B.
update dm_document object set authors[1] = ‘userA’ where object_name = ‘document1’

C.
update dm_document object append authors = ‘userA’ where object_name = ‘document1’

D.
update dm_document object add authors = ‘userA’ where object_name = ‘document1’

Explanation: