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.)

Scope1, Scope2, and Scope3 are configured to assign the IP addresses of two DNS servers to DHCP
clients. The remaining scopes are NOT configured to assign IP addresses of DNS servers to DHCP
clients.
You need to ensure that only Scope1, Scope3, and Scopes assign the IP addresses of the DNS servers
to the DHCP clients. The solution must minimize administrative effort.
What should you do?

A.
Create a superscope and a filter.

B.
Create a superscope and scope-level policies.

C.
Configure the Server Options.

D.
Configure the Scope Options.

Explanation:
Scope options are applied to any clients that obtain a lease within that particular scope. Active scope
option types always apply to all computers obtaining a lease in a given scope unless they are
overridden by class or reserved client settings for the option type.
Incorrect:
Not A, not B. A superscope allows a DHCP server to provide leases from more than one scope to
clients on a single physical network. It is not applicable here.
Not C. If we configure the Server Options and set the DNS Servers then all DHCP clients would be
assigned a DNS server.

Managing DHCP Options
https://technet.microsoft.com/en-us/library/cc958929.aspx