223.Given: 11. class PingPong2{ 12. synchronized void hit(long n){ 13. for(int i=1; i<3; i++) 14. System.out.print(n + "-" + i + " "); 15. } 16. } 17. public dass Tester implements Runnable{ 18. static PingPong2 pp2 = new PingPong2(); 19. public static void main(String[] args){ 20. new Thread(new Tester()).start(); 21. new Thread(new Tester()).start(); 22. } 23. public void run(){pp2.hit(Thread.currentThread.getId());} 24. } Which statement is true?
(A) The output could be 5-1 6-1 6-2 5-2
(B) The output could be 6-1 6-2 5-1 5-2
(C) The output could be 6-1 5-2 6-2 5-1
(D) The output could be 6-1 6-2 5-1 7-1