While troubleshooting a failed central web authentication configuration on Cisco WLC, you discover that the Cisco WLC Policy Manager State is showing RUN for new clients and not CENTRAL_WEB_AUTH. Which of the below is most likely causing this issue? 

Answer options:

A. The Web Login Page under the Cisco WLC security settings should be set to External (Redirect to external server).
B. The WLAN NAC State should be set to RADIUS NAC.C. The WLAN Layer 2 security should be set to WPA+WPA2.
D. The WLAN Layer 3 security should be set to Web Policy with Conditional Web Redirect.

C