Refer to the exhibit.

You are a senior wireless network administrator and have just completed the configuration of
TACACS+ on your production Cisco WLC server. You can successfully log into the Cisco WLC by using
your domain credentials. However, junior administrators, who have only local management accounts
on the Cisco WLC, are complaining that they can no longer log into the Cisco WLC GUI or CLI. What is
the cause of this problem?

A.
When TACACS+ is configured on the Cisco WLC, local authentication is permanently disabled.

B.
TACACS+ is the first authentication priority. The ACS is responding, so the Cisco WLC never queries
the local database.

C.
TACACS+ was configured and the ACS is responding, so all local accounts on the Cisco WLC are
disabled.

D.
The junior administrators must also have domain accounts with the same username but different
passwords than the local Cisco WLC accounts, so the ACS is returning an access-reject. This prevents
the Cisco WLC from querying the local database.