You have a server that runs Windows Server 2012 R2. The server contains the disks configured as  shown in the following table. You need to create a volume that can store up to 3 TB of user files. The solution must ensure that the user files are available if one of the disks in the volume fails.  What should you create？（）

• A、A mirrored volume on Disk 1 and Disk 4
• B、A storage pool on Disk 2 and Disk 3
• C、A storage pool on Disk 1 and Disk 3
• D、A mirrored volume on Disk 2 and Disk 3