You need to deploy the registry key to the 20 servers

Your network contains an Active Directory domain named contoso.com.
The domain contains 20 servers that run Windows Server 2012.
The domain contains a Microsoft System Center 2012 infrastructure.
A web application named WebApp1 is installed on the 20 servers.
You plan to deploy a custom registry key for WebApp1 on the 20 servers.
You need to deploy the registry key to the 20 servers.
The solution must ensure that you can verify whether the registry key was applied successfully to the servers.
What should you do? More than one answer choice may achieve the goal. Select the BEST answer.

A.
From Operations Manager, create a monitor.

B.
From the Group Policy Management console, create a Group Policy object (GPO).

C.
From Configuration Manager, create a Compliance Settings.

D.
From Orchestrator Runbook Designer, create a runbook.

Explanation:
System Center Configuration Manager can be used to deploy software (including registry keys) to clients and servers.
SCCM also generates reports after deployments, which you can then use to verify deployment success/failure.
https://technet.microsoft.com/en-us/library/bb680619.aspx

http://technet.microsoft.com/en-us/library/gg682139.aspx