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Consider the classes below, declared in the same file: class A { int a; public A() { a = 7; } } class B extends A { int b; public B() { b = 8; } } Which of the statements below is false? Group of answer choices After the constructor for class B executes, the variable a will have the value 7. A reference of type A can be treated as a reference of type B. Both variables a and b are instance variables. After the constructor for class B executes, the variable b will have the value 8.

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