You have three on-premises networks. You have an Azure subscription that contains a Basic Azure virtual WAN. The virtual WAN contains a single virtual hub and a...

You have three on-premises networks.
You have an Azure subscription that contains a Basic Azure virtual WAN. The virtual WAN contains a single virtual hub and a virtual network gateway that is limited to a throughput of 1 Gbps.
The on-premises networks connect to the virtual WAN by using Site-to-Site (S2S) VPN connections.
You need to increase the throughput of the virtual WAN to 3 Gbps. The solution must minimize administrative effort.
What should you do?

A. Upgrade the virtual WAN to the Standard SKU. B. Add an additional VPN gateway to the Azure subscription. C. Create an additional virtual hub. D. Increase the number of gateway scale units.