Which data protection method is recommended to back up and be able to restore your appliance in case of a catastrophic failure?

You are designing a new deployment consisting of HPE Proliant Gen10 rack servers and a Nimble storage array.

Which data protection method is recommended to back up and be able to restore your appliance in case of a catastrophic failure?
A . Create regular backup files and store them to an off-appliance location
B . Deploy two virtual appliance and enable synchronous replication
C . Perform regular Snapshot of the virtual appliance on the HPE Nimple array.
D . Configure automatic VMware snapshot of the virtual appliance.

Answer: A