Which of the following would a company implement in order to ensure that critical system data backups are available in case the datacenter is lost due to a natural disaster?

Which of the following would a company implement in order to ensure that critical system data backups are available in case the datacenter is lost due to a natural disaster?

A.
Snapshots

B.
e-vaulting

C.
OnsiteD2D

D.
OnsiteD2D2T