Your team is testing a new DFC application that created permission sets and linked them to dm_users. You discover, prior to an upgrade, that the developers deleted the dm_users from the database, but left thousands of permission sets that now have non-existent users. What is one way that you could have discovered this issue before upgrading?
A. by running dm_DBWarning job
B. by running consistency_checker.ebs script
C. by running dm_DMClean job
D. by running upgrade_dmclean_job.ebs script