Your network contains 20 subnets. You have a server named Server1 that runs Windows Server 2003 Service Pack 2 （SP2）. Server1 has an IP address of 192.168.10.10 and is located on a subnet named Subnet10.  All client computers run Windows XP Professional Service Pack 3 （SP3）. Users on a subnet named Subnet1 report that they cannot connect to Server1. Users on Subnet10 report that they can connect to Server1.You log on to a computer on Subnet1. You need to identify the point of failure on the network.  Which command should you run？（）

• A、Ipconfig /all
• B、Net view //192.168.10.10
• C、Ping 192.168.10.10
• D、Tracert 192.168.10.10