A. Only the commander runs routing protocols and builds the IP routing table, but it programs the standby member to route traffic.

B. Both members build their own IP routing tables, which they synchronize. Only static IP routing is supported with VSF.

C. Only the commander runs routing protocols and builds the IP routing table, and all routed traffic must pass through the commander.

D. Both members run routing protocols and build their own IP routing tables, and they synchronize the tables over VSF links.