A client application calls a Windows Communication Foundation (WCF) service with a proxy
class that was generated by Visual Studio. The service binding was changed from
wsHttpBinding to basicHttpBinding. The method signatures in the service contract are
changed. After these changes, the client application receives errors when calling methods
on the service. You need to ensure that the client can invoke methods on the service
successfully. What should you do?

A.
Update the service reference.

B.
Copy the configuration file elements under the <system.servicelviodel> element from the
service back to the client.

C.
Update the configuration file to use basicHttpBinding.

D.
Enable anonymous authentication for the service.