You need to design an authentication solution for the wireless network. Your solution must meet the security requirements. What should you do？（）

• A、Create wireless VPNs using L2TP/IPSec between the client computers to the wireless access point
• B、Configure IEEE 802.1x authentication with smart cards
• C、Configure the wireless network to use Wired Equivalent Privacy （WEP）
• D、Install and configure an Internet Authentication Service （IAS） server