Question: Write a program that consists of three classes, A, B, and C, such that B extends A and that C extends B. Each class should

Write a program that consists of three classes, A, B, and C, such that B extends A and that C extends B. Each class should define an instance variable named “x” (that is, each has its own variable named x). Describe a way for a method in C to access and set A’s version of x to a given value, without changing B or C’s version.

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