Which statement changes a private acl to public acl?

A.
IDfACL acl = (IDfACL)session.getObject(…); acl.setACLClass(3); acl.save();

B.
IDfACL acl = (IDfACL)session.getObject(…); acl.setOwnerName(“dm_dbo”); acl.save();

C.
update dm_acl object set acl_class = 3 where r_object_id = ‘…’

D.
update dm_acl object set owner_name = ‘dm_dbo’ where r_object_id = ‘…’