What is the correct answer to this question. There are two different answers given for this question. One

What is the correct answer to this question. There are two different answers given for this question. One place said the correct answer are A, C, and G while the other says D, E, and F. Which is correct please explain?

Question:

A Chief Information Security Officer has defined resiliency requirements for a new data center architecture The requirements are as follows

* Critical fileshares will remain accessible during and after a natural disaster

* Five percent of hard disks can fail at any given time without impacting the data.

* Systems will be forced to shut down gracefully when battery levels are below 20%

Which of the following are required to BEST meet these objectives? (Select THREE)

A. Fiber switching

B. laC

C. NAS

D. RAID

E. UPS

F. Redundant power supplies

G. Geographic dispersal

H. Snapshots

I. Load balancing