You have been tasked with configuring a secure WLAN for 900 APs at the corporate offices. All the APs and employee Windows laptops have been configured for EAP-MSCHAPv2. You are required to provide both machine and user authentication as part of the security solution. You have verified that the backend communications between the RADIUS server and the AP are working. After viewing the graphic shown here, determine the possible causes of the problem. (Choose all that apply.) Send message to RADIUS Server (10.5.1.129): code-1 (Access-Request) identifier-151 length-203, RADIUS: SSL negotiation, send server certificate and other message Receive message from RADIUS Server: code-11 (Access-Challenge) identifier-151 length=340 Sending EAP Packet to STA: code 1 (EAP-Request) identifier 4 length=280 received EAP packet (code-2 id-4 len-17) from STA: EAP Reponse-PEAP (25) Send message to RADIUS Server(10.5.1.129): code=1 (Access-Request) identifier-152 length=214, RADIUS: RADIUS: rejected user 'host/TRAINING-PC16.ah-lab.local' through the NAS at 10.5.1.129. Authentication is terminated (at if-wifi0.1) because it is rejected by RADIUS server Sending EAP Packet to STA: code-4 (EAP-Failure) identifier-4 length 4 Sta(at if-wifi0.1) is de-authenticated because of notification of driver A. The domain account has expired. B. The machine accounts were not joined to the domain. C. The server certificate has expired. D. The supplicant has only been configured for user authentication. E. The root certificate has expired. F. The incorrect root certificate is selected in the supplicant.