Which data access methodology should you use?

You are developing a Windows application to manage customer data by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
Data is stored in several geographically separated SQL Server databases.
Modifications to the database schema have caused the application to fail.
You need to ensure that schema modifications will not cause application failure.
Which data access methodology should you use?
A. LINQ to SQL
B. ADO.NET Entity Framework
C. ADO.NET Data Table objects
D. ADO.NET Data Reader objects

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