A hospital network needs to upgrade their Cisco FMC managed devices and needs to ensure that a disaster recovery process is in place. What must be done in order to minimize downtime on the network? 

Answer options:

A. Configure a second circuit to an ISP for added redundancy.
B. Keep a copy of the current configuration to use as backup.
C. Configure the Cisco FMCs for failover.
D. Configure the Cisco FMC managed devices for clustering.

C