Your company runs Remote Desktop Services. You have a Remote Desktop Web Access (RD Web Access) server. You publish several applications on the internal networ k 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.