Your network contains a main office and one branch office.All servers run Windows Server 2003 Service Pack 2 (SP2).
The network is configured as shown in the exhibit.
Server2 has the Routing and Remote Access service and the DNS Server service installed.
Server3 successfully connects to Internet hosts.Server1 is unable to connect to Internet hosts.
You need to ensure that you can connect to Internet hosts from Server1.
What should you do?
A.
On Server2, change the subnet mask to 255.255.0.0.
B.
On Server1, change the subnet mask to 255.255.255.0.
C.
On Server1, configure the default gateway address as 172.16.20.1.
D.
On Server2, configure the default gateway address as 172.16.20.1.