Refer to the exhibit.
An engineer has determined that during a recent controller failure, some access points did not fail over to their secondary controller, which has sufficient licenses for all APs. The controllers are not in a mobility group, but have A records for their hostnames in DNS.
Using these high availability settings, which option is the most likely cause of this issue?
A . The AP failover priority was not set high enough.
B . The controllers must be in the same mobility.
C . DNS hostnames are required to be FQD
E . The secondary controller IP address is incorrect.
Answer: A