An application contains .NET Framework Web services that are built by using Microsoft Visual Studio 2005.
Discovery information for these Web services must be made available to client applications.
You need to expose the Disco files for all Web services in the application.

What should you do?

A.
Add a .vsdisco file to the application root and add the corresponding httpHandler to the Web.config file.

B.
Use the Sproxy.exe tool to create the Disco files from the .wsdl files.

C.
Add a set of Disco files to the application root and add the PageHandlerFactory httpHandler to the Web.config file.

D.
Add the description parameter to the WebService attribute in the class files.