An engineer has been tasked with providing disaster recovery for an organization`s primary Cisco FMC. What must be done on the primary and secondary Cisco FMCs to ensure that a copy of the original corporate policy is available if the primary Cisco FMC fails? 

Answer options:

A. Restore the primary Cisco FMC backup configuration to the secondary Cisco FMC device when the primary device fails.
B. Connect the primary and secondary Cisco FMC devices with Category 6 cables of not more than 10 meters in length.
C. Configure high-availability in both the primary and secondary Cisco FMCs.
D. Place the active Cisco FMC device on the same trusted management network as the standby device.

C

Reference: https://www.cisco.com/c/en/us/td/docs/security/firepower/620/configuration/guide/fpmc-config-guide-v62/firepower_management_center_high_availability.html