What Information Is Found in the Following Excerpt from the File

What information is found in the following excerpt from the file /proc/mdstat ?

A) One of the disks in /dev/md0 has failed and a spare disk is used to recreate full redundancy
B) The spare disk /dev/sda1 is used to restore full redundancy after the current recovery
C) The information [UU_] means, that the raid is missing one disk and is not fully redundant
D) The device is using version 1.2 metadata to allow LILO and GRUB Legacy to use /dev/md0 as the boot partition. This would not have been necessary with GRUB2
E) The information [3/2] means that 3 RAID disks belong to the array and 2 disks are spare. Together they equal the number of available disks

Correct Answer:

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