You need to ensure that Computer1 can receive an IP address from DC1

Your network contains an Active Directory domain named contoso.com. The domain contains a
domain controller named DC1 that runs Windows Server 2012 R2 and a client computer named
Computer1 that runs Windows 8. DC1 is configured as a DHCP server as shown in the exhibit.
Computer1 is configured to obtain an IP address automatically.
You need to ensure that Computer1 can receive an IP address from DC1.
What should you do?

A.
Disable the Allow filters.

B.
Disable the Deny filters

C.
Activate Scope [10.1.1.0] Contoso.com.

D.
Authorize dc1.contoso.com.

Explanation:
A red down arrow indicates an unauthorized DHCP server. A DHCP server that is a domain controller
or a member of an Active Directory domain queries Active Directory for the list of authorized servers
(identified by IP address). If its own IP address is not in the list of authorized DHCP servers, the DHCP
Server service does not complete its startup sequence and automatically shuts down.