What will you do?

You create a Windows application using .NET Framework 4.0. The application contains a set of WCF services to authorize and clear up credit card transactions. A separate service is implemented for each credit card provider. However, the same service contracts and data contracts are used across all implementations. The incoming requests to the service must conform to the contracts.
You want to implement a validation strategy to meet the requirements by using the least amount of development efforts.
What will you do?
A. Use a message inspector.
B. Implement IDispatchMessageInspector interface.
C. Implement a custom class that inherits from SoapExtensionAttribute.
D. Use the CustomValidator class.

microsoft-exams

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