public class test {  public static void add3 （Integer i）  int val = i.intValue （ ）；  val += 3；  i = new Integer （val）；  } public static void main （String args [ ] ）  {  Integer  i = new Integer （0）；  add3 （i）；  system.out.printIn （i.intValue （ ）  ）；  } What is the result？（）  

• A、 Compilation will fail.
• B、 The program prints “0”.
• C、 The program prints “3”.
• D、 Compilation will succeed but an exception will be thrown at line 3.