An existing Windows application uses a Windows Communication Foundation (WCF) Web service that is available only to employees. You have the following requirements:
. Make the WCF Web service available to business partners.
. Enable business partners to send a profile token.
. Ensure that the currently deployed application continues to function.
You need to recommend a solution that meets the requirements. What should you recommend?
A. Convert the WCF Web service to a Duplex service that implements a callback to accept the profile token.
B. Use SOAP headers to pass the profile token to the service operations.
C. Modify the WCF Web service operations to accept the profile token as an additional parameter.
D. Implement the WCF Web service as a REST service.
