You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create anÂ application. The application uses the ADO.NET Entity Framework to model entities. TheÂ application allows users to make changes to entities while disconnected from the central data store._x005F_x000D_ Â _x005F_x000D_ You need to ensure that when the user connects to the central data store and retrieves new data, the application meets the following requirements:_x005F_x000D_ _x005F_x000D_ Changes made to the local data store in disconnected mode are preserved._x005F_x000D_ Entities that have already been loaded into the local data store, but have not been modified by the user, are updated with the latest data._x005F_x000D_ _x005F_x000D_ What should you do?

Call the query's Execute method by using the MergeOptions.AppendOnly option.

Call the query's Execute method by using the MergeOptions.OverwriteChanges option.

Call the Refresh method of ObjectContext by using the RefreshMode.StoreWins option.

Call the Refresh method of ObjectContext by using the RefreshMode.ClientWins method.

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to

1.	You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create anÂ application. The application uses the ADO.NET Entity Framework to model entities. TheÂ application allows users to make changes to entities while disconnected from the central data store._x005F_x000D_ Â _x005F_x000D_ You need to ensure that when the user connects to the central data store and retrieves new data, the application meets the following requirements:_x005F_x000D_ _x005F_x000D_ Changes made to the local data store in disconnected mode are preserved._x005F_x000D_ Entities that have already been loaded into the local data store, but have not been modified by the user, are updated with the latest data._x005F_x000D_ _x005F_x000D_ What should you do?
A.	Call the query's Execute method by using the MergeOptions.AppendOnly option.
B.	Call the query's Execute method by using the MergeOptions.OverwriteChanges option.
C.	Call the Refresh method of ObjectContext by using the RefreshMode.StoreWins option.
D.	Call the Refresh method of ObjectContext by using the RefreshMode.ClientWins method.
Answer» E.

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