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.