What must be done to ensure that all devices can communicate together?

An organization uses Cisco FMC to centrally manage multiple Cisco FTD devices. The default management port conflicts with other communications on the network and must be changed.

What must be done to ensure that all devices can communicate together?
A . Set the sftunnel to go through the Cisco FT
C . Change the management port on Cisco FMC so that it pushes the change to all managed Cisco FTD devices.
D . Set the sftunnel port to 8305.
E . Manually change the management port on Cisco FMC and all managed Cisco FTD devices.

Answer: B