You are planning to migrate an existing web application to Windows Azure. The application consists of an ASP.NET web application and a set of native Win32 Windows Services that provide data to the application by using named pipes. The Windows Services cannot be modified. You need to recommend a strategy for migrating the application to Windows Azure. What should you recommend？（）
- A Define a Windows CommunicationFoundation （WCF） contract for the services.
- B Deploy each Windows Service to a separate worker role. Deploy the ASP.NET application to a web role.
- C Deploy the application and Windows Services in a Windows Azure VM role.
- D Upload service binaries to a web role by using the Windows Azure Service Management API.