How does a wireless network management system (WNMS) discover EAP usernames?

A.
The WNMS acts as an 802.1X authentication server proxy, relaying information between the WLAN controller and the RADIUS server.

B.
The WNMS polls access points or WLAN controllers using SNMP.

C.
The client device sends the username to the WNMS on port 113 (ident service) after successful authentication.

D.
The RADIUS server sends the username to the WNMS after the wireless device successfully authenticates.

E.
The WNMS captures the username by telling APs to sniff the wireless medium during the authentication process.