You update a cluster from OneFS 6.0 to OneFS 6.5. The cluster is a member of an LDAP domain.After the upgrade is complete, you check the LDAP settings, but find that LDAP is not configured on the cluster. What happened? (Choose 1)

A.
You misconfigured the upgrade, and must retry to upgrade the cluster.

B.
LDAP standards have changed, so you must rejoin the LDAP domain.

C.
The cluster has changed how it implements LDAP, so you must rejoin the LDAP domain.

D.
You must run the isi ldap upgrade command.

E.
The cluster now only supports Legacy LDAP.