How is this accomplished on an FTD device in routed mode?

A network engineer is extending a user segment through an FTD device for traffic inspection without creating another IP subnet.

How is this accomplished on an FTD device in routed mode?
A . by assigning an inline set interface
B . by leveraging the ARP to direct traffic through the firewall
C . by bypassing protocol inspection by leveraging pre-filter rules
D . by using a BVl and create a BVl IP address in the same subnet as the user segment

Answer: D