You are sizing a solution based on performance requirements.
How do you calculate the number of front-end I/ Os versus back-end I/O when doing single writes?
(Select three.)

A.
On RAID 1, a single front-end I/0 results in 1 back-end I/O

B.
On RAID 5, a single front-end I/O results in 4 back-end I/Os

C.
On RAID 5, asingefront-end I/0 results in 3 back-end I/Os

D.
On RAID 6, a single front-end I/O results in 4 back-end I/Os

E.
On RAID 6, a single front-end I/O results in 6 back-end l/Os

F.
On RAID 1, a single front-end I/O results in 2 back-end I/Os