Which Diskpart command should you use?

You have a server named Server1 that runs a Server Core Installation of Windows Server 2012 R2. You attach
a 4-TB disk to Server1.
The disk is configured as an MBR disk. You need to ensure that you can create a 4-TB volume on the disk.
Which Diskpart command should you use?

A.
Automount

B.
Convert

C.
Expand

D.
Attach

Explanation:
You will need to convert the disk to a GPT since GPT disks allows for partitioning >2TB and not MBR disks.
http://msdn.microsoft.com/en-us/library/windows/hardware/gg463524.aspx