class A {}
class B extends A {}
class C extends A {}
class D extends C {}

class TrueOrFalse {
    public static void main(String[] args) {
        A a = new A();
        B b = new B();
        C c = new C();
        D d = new D();
        Object e = new D();
        A f = new B();

        System.out.println("a) " + (b instanceof A)); //True
        System.out.println("b) " + (c instanceof D)); //False
        System.out.println("c) " + (d instanceof A)); //True
        System.out.println("d) " + (e instanceof C)); //True
        System.out.println("e) " + (f instanceof C)); //False
    }
}