You create an orchestration to communicate with a Web service that requires credentials. You also create a Web service port with default settings. When you use the port, you discover that messages are not sent. What should you do?

A.
Set the AuthenticationScheme parameter to match the Username and Password of the Web service.

B.
In Internet Information Services, disable the Anonymous Access parameter for the Web service.

C.
Set the ProxyUsername and ProxyPassword parameters to match the Username and Password of the Web service.

D.
Set the UseSSO parameter to True.