You need to capture an image of Server1 to WDS1

Your network contains an Active Directory domain named contoso.com.
The domain contains a member server named WDS1.
You install the Windows Deployment Services (WDS) server role on WDS1.
You have a reference computer named Server1 that runs windows Server 2008 R2.

You need to capture an image of Server1 to WDS1.

What should you do first?

A.
Add a boot image to WDS1.

B.
Add an install image to WDS1.

C.
Start Server1 from the Windows 7 installation media.

D.
Add an image group to WDS1.