Which command should you run first?

Your network contains a Windows Server 2012 R2 image named Server12.wim. Server12.wim contains the
images shown in the following table.

Server12.wim is located in C:\.
You need to enable the Windows Server Migration Tools feature in the Windows Server 2012 R2 Datacenter
image. You want to achieve this goal by using the minimum amount of administrative effort.
Which command should you run first?

A.
imagex.exe /apply c:\server12.wim 4 c:\

B.

C.
imagex.exe /capture c: c:\Server12.wim “windows server 2012 r2 datacenter”

D.
dism.exe /mount-wim /wimfile:c:\Server12.wim /index:4 /mountdir:c:\mount

Explanation:
The command should be dism.exe /Mount-Image /Imagefile:C:\Server12.wim /index:4 /MountDir:C:\mount
and next: Dism /Image:C:\mount /Enable-Feature /FeatureName:migration /All
http://technet.microsoft.com/en-us/library/hh824814.aspx
This command will mount the image before making anychanges.