What Is a Characteristic of Bridge Groups on a Cisco

What is a characteristic of bridge groups on a Cisco FTD?

A) In routed firewall mode, routing between bridge groups is supported.
B) Routing between bridge groups is achieved only with a router-on-a-stick configuration on a connected router.
C) In routed firewall mode, routing between bridge groups must pass through a routed interface.
D) In transparent firewall mode, routing between bridge groups is supported.