Your network contains a server named Server1.contoso.com. Server1 is located on the internal network. You have a client computer named Computer1 that runs Windows 7. Computer1 is located on a public network that is connected to the Internet. Computer1 is enabled for DirectAccess. You need to verify whether Computer1 can resolve Server1 by using DirectAccess. Which command should you run on Computer1？（）

• A、nbtstat.exe a server1.contoso.com
• B、netsh.exe dnsclient show state
• C、nslookup.exe server1.contoso.com
• D、ping.exe server1.contoso.com