Which computers should you identify?

Your network contains an Active Directory domain named contoso.com. The domain contains four
computers that are configured as shown in the following table.

You plan to use domain controller cloning.
You need to identify on which computers you can clone domain controllers that run Windows Server
2012.
Which computers should you identify? (Each correct answer presents part of the solution.
Choose all that apply.)

A.
Server1

B.
Server2

C.
Server3D. Client1

Explanation:
DC cloning can be done from either Hyper-V on Server 2012 and Hyper-V on Windows 8.
http://www.anotherwindowsblog.com/2013/04/creating-vm-clones-in-microsoft-hyperv.html