You have a computer that runs Windows 7.

You need to copy files to a virtual hard disk (VHD) file.

What should you do first?

A.
Run Dism.exe and specify the /image and /online parameters.

B.
Open Windows Explorer, right-click the VHD file and select Open.

C.
Run Diskpart.exe and then run the Select and Attach commands.

D.
Run Imagex.exe and specify the /mountrw and /append parameters.

Explanation:
Diskpart
Microsoft command-line tool Diskpart is used to create and format volumes on the target computer.

Select
Shift the focus to an object.

Attach
Attaches a virtual disk file.