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An object that represents a useful model of a problem domain is which type of abstraction?

27. An object that represents a useful model of a problem domain is which type of abstraction?

1. Action Abstraction
2. Virtual Machine Abstraction
3. Coincidental Abstraction
4. Entity Abstraction

Answer: D) Entity Abstraction

Explanation:

Entity Abstraction is an object that represents a useful model of a problem domain or solution-domain entity.