The RAID is the thing

Which of these would be true about RAID 1?

A) In the case of a failure, an exact duplicate of your data exists

B) RAID 1 is generally much faster than RAID 0

C) In the case of failure, the array is broken and data is unrecoverable

D) Data is made redundant through the use of parity blocks

E) RAID 1 is a hard worker who is always on time and isn’t afraid to go the extra mile