Your network contains an Active Directory domain named contoso.com. The domain
contains a domain controller named DC2 that runs Windows Server 2012 R2. DC2 has the
DHCP Server server role installed.
DHCP is configured as shown in the exhibit. (Click the Exhibit button.)

You discover that client computers cannot obtain IPv4 addresses from DC2.
You need to ensure that the client computers can obtain IPv4 addresses from DC2.
What should you do?

A.
Disable the Deny filters.

B.
Enable the Allow filters.

C.
Authorize DC2.

D.
Restart the DHCP Server service