Explanation/Reference:
One requirement for cloning a domain controller is an existing Windows Server 2012 DC that hosts the PDC emulator role. You can run the Get-ADDomain and retrieve which server has the PDC emulator role.
Example: Command Prompt: C:\PS>
Get-ADDomain
Output wouldinclude a line such as: PDCEmulator : Fabrikam-DC1.Fabrikam.com Incorrect:
Not A: The Get-ADGroupMember cmdlet gets the members of an Active Directory group. Members can be users, groups, and computers.
Not E: The Get-ADOptionalFeature cmdlet gets an optional feature or performs a search to retrieve multiple optional features from an Active Directory.
Not F: The Get-ADAuthorizationGroup cmdlet gets the security groups from the specified user, computer or service accounts token.
Reference: Step-by-Step: Domain Controller Cloning
http://blogs.technet.com/b/canitpro/archive/2013/06/12/step-by-step-domain-controller-cloning.aspx Reference: Get-ADDomain
https://technet.microsoft.com/en-us/library/ee617224.aspx