What action should you perform on Server02?

You work as an IT professional in an international company which is named Contoso. Your major job is to translate business goals into technology decisions and plan mid-range to long-term strategies. And you are experienced in network infrastructure, security policy and business continuity. In your company, you are responsible for infrastructure design and global configuration changes.
There is one Active Directory domain in your network. Two servers named Server01 and Server02 are contained in the domain.
Windows Server 2008 is run by all servers.
Server01 can be accessed only from the internal network.
Server02 can be accessed from the internal network and from the Internet.
Microsoft SQL Server 2005 is run by Server01.
All client computers are members of the domain and run Windows Vista Service Pack 1 (SP1).
All client computers run an application that uses ActiveX Data Objects (ADO) to connect to Server01.
Remote users need to be enabled to run the application from the Internet.
Your solution must meet the following requirements:
– The SQL Server connection method used by the client application must not be changed.
– Remote users must be able to access the application through an HTTP or HTTPS connection.
What action should you perform on Server02?

A.
The Network Policy and Access Services (NPAS) server role should be installed. Secure Socket Tunneling Protocol (SSTP) connections should be enabled.

B.
The RPC should be installed over HTTP Proxy feature. A proxy connection should be configured to Server01.

C.
The Terminal Services Gateway (TS Gateway) role service should be installed. An ADO connection should be configured to Server01.

D.
The Web Server (IIS) server role should be installed. A Web service that connects should be configured to SQL Server on Server01.