Your network consists of a single Active Directory domain named nwtraders.com. All network servers run Windows Server 2003 Service Pack 2 (SP2).The relevant IP configuration for the network is configured as shown in the following table. DC1 contains an Active Directory-integrated zone for nwtraders.com.From Server2, you run the Ping 172.26.26.11 command and receive a request timed out error message. From Server2, you run the Ping 172.16.16.129 command and receive a reply. You need to ensure that you can join Server2 to the nwtraders.com domain. What should you do?（）

A. Set the IP address to 172.16.16.2.
B. Set the subnet mask to 255.255.255.128.
C. Set the default gateway address to 172.16.16.129.
D. Set the preferred DNS server address to 172.16.16.130.