Which line of code should you use?

You create a Windows Workflow Foundation application by using Microsoft .NET Framework 3.5. The application uses the InvokeWebServiceActivity activity to call a Web service. You need to identify the method in the proxy class that you can use to communicate with the Web service. Which line of code should you use?

A.
string Method = this.invokeWebServiceActivity1.Name;

B.
String Method = this.invokeWebServiceActivity1.MethodName;

C.
string Method = this.invokeWebServiceActivity1.QualifiedName;

D.
string Method = this.invokeWebServiceActivity1.ToString();