Consider the following method from the class Dog.

 public void speak() { System.out.println("Bark"); } 

Which of the following methods implemented in Pomeranian, a child class of Dog correctly overrides the method speak?

I.

 public String speak() { return "Yip"; }

II.

 public void speak() { super.speak(); System.out.println("Yip"); }

III.

 public void speak() { System.out.println("Yip"); }

I, II, and III

I only

II and III

II only

III only