Explanation: To implement a solution that enables the client computers on your on-premises network to communicate to the Azure virtual machines, you need to configure aVPN (Virtual Private Network) to connect the on-premises network to the Azure virtual network. The Azure VPN device is known as a Virtual Network Gateway. The virtual network gateway needs to be located in a dedicated subnet in the Azure virtual network.This dedicated subnet is known as a gateway subnet and must be named ‘GatewaySubnet’. Note: a virtual network (answer D) is also required. However, as we already have virtual machines deployed in a Azure, we can assume that the virtual network isalready in place. References: https://docs.microsoft.com/en-us/office365/enterprise/connect-an-on-premises-network-to-a-microsoft-azure-virtual-network