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