What should you include in the solution?

You have 10 on-premises networks that are connected by using a 3rd party Software Defined Wide Area Network (SD-WAN) solution. You have an Azure subscription that contains five virtual networks.

You plan to connect the Azure virtual networks and the on-premises networks by using an Azure Virtual WAN with a single virtual WAN hub.

You need to ensure that the Azure Virtual WAN can act as a node in the 3rd party SD-WAN solution.

What should you include in the solution?
A . An Azure Virtual WAN ExpressRoute gateway
B. A Network Virtual Appliance (NVA)
C. A Site to site gateway (VPN gateway)
D. A Point to site gateway (User VPN gateway)

Answer: B