When using SD-WAN, how do you configure the next-hop gateway address for a member interface so that FortiGate can forward Internet traffic?

A. It must be configured in a static route using the sdwan virtual interface.

B. It must be provided in the SD-WAN member interface configuration.
C. It must be configured in a policy-route using the sdwan virtual interface.
D. It must be learned automatically through a dynamic routing protocol.