Which of these keywords are used to implement synchronization? class newthread extends Thread Thread t; String name; newthread(String threadname) name = threadname; t = new Thread(this,name); t.start(); public void run() class multithreaded_programing public static void main(String args[]) newthread obj1 = new newthread("one"); newthread obj2 = new newthread("two"); try obj1.t.wait(); System.out.print(obj1.t.isAlive()); catch(Exception e) System.out.print("Main thread interrupted");

Answer: Option D