Your environment includes a Windows Server 2008 R2 Hyper-V server. The server hosts several virtual machines （VMs）. You are configuring a VM to use pass-through disks. In the Hyper-V Manager Settings window for the VM， Disk 1 through Disk 7， Disk 9， and Disk 10 are available in the Physical hard disk list. Disk 8 does not appear in the list， as shown in the following display. You need to configure the VM to use Disk 8 as a pass-through disk.Exhibit: What should you do？（）

• A、Take Disk 8 offline.
• B、Convert Disk 8 to a dynamic disk.
• C、Format Disk 8， and mark the partition as active.
• D、Run the Diskpart command. At the Diskpart prompt， type select disk 8， and then type recover.