You need to design an authentication solution for the wireless network. Your solution must meet the security requirements. What should you do？（）
- ACreate wireless VPNs using L2TP/IPSec between the client computers to the wireless access point
- BConfigure IEEE 802.1x authentication with smart cards
- CConfigure the wireless network to use Wired Equivalent Privacy （WEP）
- DInstall and configure an Internet Authentication Service （IAS） server