d) What is the result when the following classes are compiled: Explain your answer. class Bird ( System.out,print"bl"); ) public BirdO { System.out print("b2 "); ) class Raptor extends Bird public RaptorO { System.out.print("T2 ") class Hawk { public Hawkot Raptor hnew Raptor0 public static void main(Stringl] args) System.out.print("pre ") new HawkO: System.out.println" hawk "); (7 marks)