Consider: class A { } } public void doA() class B extends A { } } public void doB() } class C extends B { public void doc() { Which of the following are allowed? A x = new A(); x.doA(); C x = new C(); x.doA(); A x = new A(); x.doC(); C x = new C(); x.doC(); C x = new C(); x.doB(); A x = new A(); x.doB();

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