You are designing a data access service backed by Microsoft SQL Server. Other
developers will use your service as a third-party service. You have the following
requirements: To reduce maintenance cost, you must write the minimal amount of code
required for fulfilling the goals. The service must function with Microsoft and non-Microsoft
technologies. The service must implement the WS-Security standards. You need to design
the service to meet the requirements. Which approach should you recommend?

A.
Use an .ashx file to return an XML response over HTTPS.

B.
Use SQL Server XML Web services.

C.
Use a WCF service with multiple bindings.

D.
Use an ASP.NET Web service.

Explanation: