You use the Entity Data Model Wizard to generate an Entity Data Model (EDM) from an application database. You need to write a debugging method that allows you to dump information about the current state of entity instances. The method should output all original property values and compare with current property values.
Which class should you use?

The ObjectStateManager class maintains object state and identity management for entity type instances and relationship instances. You can access its OriginalValue and ModifiedValues properties to compare object properties.

The EntityObject class is the base class for entity types that are generated by the EDM tools. You cannot use it to retrieve modified property values.