Consider the following abstract interface and abstract class. abstract interface circusShow {abstract public void entrance (); abstract public void act (); abstract public void announcement (); abstract public void performance (); abstract public void exit ();} abstract class CircusPerformer {abstract public void entrance () {System, out, println ("Performer enters arena in Parade.");} abstract public void act (); abstract public void announcement (); abstract public void performance (); abstract public void exit ();} What is true about the use of the reserved word abstract? I. None of the abstract words are required in the interface declaration. II. None of the abstract words are required in the class declaration. III. The entrance method in circusPerformer is not abstract. (A) I only (B) II only C) III only (D) I and II only (E) I and