Consider the following class definitions: class A {public void foo() {}} class B extends A {public void bar() {}} class C extends B {public void bar() {}} Which methods may be called on an object of type C? Consider the following class definitions: class Dog {public void speak() {Sytem.out.printIn("woof");} class Chihuahua {public void speak() {Sytem.out.println("yipyipyip!");}} What output is produced by the following code? Dog d = new Chihuahua(); d.speak(); Why do we typically use super()