In a deployment using standalone access points， clients set up to authenticate with EAP-PEAP or EAP-Cisco Wireless （Cisco-LEAP） cannot authenticate. When you inspect the Failed Attempts report on theCisco Secure ACS， you find this error： "Unknown network access server NAS." Which problem may havecaused this failure？（）
- Amisconfigured EAP type on the access point
- Bmisconfigured EAP type on the AAA server
- Cmisconfigured IP address of the access point on the AAA server
- Dmisconfigured IP address of the AAA server on the access point