What should you do?

You use Microsoft Visual Studio 2010 and .NET Framework 4.0 to enhance and existing application use Entity Framework.
The classes that represent the entites in the model are Plain old CLR Object (POCO) Classes.
You need to connect the existing POCO classes to an entity framework context. What should you do?

A.
1. Generate a MetadataWorkspace and create an ObjectContext for the model.
2. Disable Proxy object creation on the ContextOptions of the ObjectContext.
3. Enable lazy loading on the ContextOptions of the ObjectContext.

B.
1. Generate a MetadataWorkspace and create an ObjectContext for the model.
2. Create an ObjectSet fort he POCO classes.
3. Disable Proxy object creation on the ContextOptions of the ObjectContext.

C.
1. Generate an Entity Data Model fort he POCO classes.
2. Create an ObjectSet fort he POCO classes.
3. Disable Proxy object creation on the ContextOptions of the ObjectContext.
4. Enable lazy loading on the ContextOptions of the ObjectContext.

D.
1. Generate an Entity Data Model for the POCO classes.
2. Create an ObjectSet for the POCO classes.
3. Set Code Generation Strategy on the Entity Data Model to none.
4. Create an ObjectContext for the model.