Your company has an Active Directory domain named contoso.com. The company network has two DNS
servers named DNS1 and DNS2.
The DNS servers are configured as shown in the following table.

Domain users, who are configured to use DNS2 as thepreferred DNS server, are unable to connect to Internet
Web sites.
You need to enable Internet name resolution for allclient computers.
What should you do?

A.
Update the list of root hints servers on DNS2.

B.
Create a copy of the .(root) zone on DNS1.

C.
Delete the .(root) zone from DNS2. Configure conditional forwarding on DNS2.

D.
Update the Cache.dns file on DNS2. Configure conditional forwarding on DNS1.