Your company runs Remote Desktop Services. You have a Remote Desktop Web Access (RD Web Access) server. You publish several applications on the internal network by using RD Web Access. You need to ensure that the published applications are accessible from the Internet via an HTTPS connection over port 443. What should you do first?（）

• A、Use Internet Information Services (IIS) Manager to disable Forms Authentication.
• B、Use Internet Information Services (IIS) Manager to enable Windows Authentication.
• C、Install and configure the Remote Desktop Gateway (RD Gateway) role service on the RD Web Access server.
• D、Install and configure the Remote Desktop Connection Broker (RD Connection Broker) role service on the RD Web Access server.