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Chapter 11:Abstrac Data Types and Encapsulation Concepts Suppose someone designed a stack abstract data type in which the function top returned an access path (or pointer) rather than returning a copy of the top element. This is not a true data abstraction. Why? Give an example that illustrates the problem 1. Chapter 12: Abstract Data Types and Encapsulation Concepts Explain the two problems with abstract data types that are ameliorated by inheritance Explain one disadvantage of inheritance