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单项选择题 public static Iterator reverse(List list) {  Collections.reverse(list);  return list.iterator();  }  public static void main(String[] args) {  List list = new ArrayList();  list.add(” 1”); list.add(”2”); list.add(”3”);  for (Object obj: reverse(list))  System.out.print(obj + “,”);  }  What is the result?() 

A、 3,2,1,

B、 1,2,3,

C、 Compilation fails.

D、 The code runs with no output.

E、 An exception is thrown at runtime.

  • C
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