public class Test {  public enum Dogs {collie， harrier， shepherd}；  public static void main（String [] args） {  Dogs myDog = Dogs.shepherd；  switch （myDog） {  case collie：  System.out.print（”collie “）；  case default：  System.out.print（”retriever “）； case harrier：  System.out.print（”harrier “）；  }  }  }  What is the result？（） 

• A、 harrier
• B、 shepherd
• C、 retriever
• D、 Compilation fails.
• E、 retriever harrier
• F、 An exception is thrown at runtime.