You have a server that runs Windows Server 2003 Service Pack 2 （SP2）.  The server has the Routing and Remote Access service enabled and is configured as a network address translation （NAT） router. You need to view a list of the current sessions on the Routing and Remote Access server and the private and public IP addresses and ports that are being used.  What should you do？（）

• A、Run Nbtstat–S.
• B、Run Netstat–ano.
• C、From the Routing and Remote Access snap-in， right-click NAT/Basic Firewall and select Export List.
• D、From the Routing and Remote access snap-in， right-click the interface connected to the Internet and click Show Mappings.