How do you ensure that the Cisco NAS has the most recent version of the Cisco NAA to install on user devices?

A.
From the Cisco NAS web Admin Console, enable Cisco NAA autoupdate on the Administration->Software Update Form

B.
The Cisco NAA is upgraded directly to each Cisco NAS using the upgrade server form available on the Cisco NAM web console GUI

C.
Configure the Cisco NAS by selecting which Cisco NAA to upgrade in the Cisco NAA Upgrade form

D.
Each Time the Cisco NAA is upgraded, the Cisco NAM automatically download the new version of Cisco NAA to all Cisco NAS Servers