Your network contains an Active Directory domain named contoso.com. The domain contains a
server named Server3 that runs Windows Server 2012 R2 and has the DHCP Server server role
installed.
DHCP is configured as shown in the exhibit. (Click the Exhibit button.)

You need to ensure that only Scope1, Scope3, and Scope5 assign the same DNS servers to DHCP
clients. The solution must minimize administrative effort.
What should you do?

A.
Create a superscope and scope-level policies.

B.
Configure the Scope Options.

C.
Create a superscope and a filter.

D.
Configure the Server Options.

Explanation:
Any DHCP scope options can be configured for assignment to DHCP clients, such as DNS server.

Configuring a DHCP Scope.
http://technet.microsoft.com/en-us/library/dd759218.aspx