You are the administrator of your company’s network. The dial-up server on your network is configured to support certificate authentication. A user named Tom wants to use smart card authentication on his Windows 2000 Professional portable computer. You that Tom’s computer has a PC Card smart card reader and the appropriate drivers installed. You give Tom a smart card to use. What else should you do to enable smart card authentication on Tom’s computer? （）
- AConfigure a dial-up connection to use EAP. Select the smart card device for authentication.
- BConfigure a dial-up connection to use SPAP. Select the smart card device for authentication.
- CConfigure a dial-up connection to use certificate authentication. Enable the usercredentials for authentication.
- DConfigure a dial-up connection to connect to a private network through the Internet. Enable L2TP be create a virtual private network （VPN） tunnel.