A customer with RAID 1+0 configured in a storage array lost two drives, and the array failed.
What should you recommend to address the problem of two simultaneous drive failures?

A.
RAID1

B.
RAID 5

C.
RAID 6

D.
RAID 10

Explanation:
http://www.gartner.com/it-glossary/raid-redundant-array-of-independent-disks/(See
RAID 6)