Predict the output:class A implements Runnable{public void run(){try{for(int i=0;i<4;i++){Thread.sleep(100);System.out.println(Thread.currentThread().getName());}}catch(InterruptedException e){}}}public class Test{public static void main(String argv[]) throws Exception{A a = new A();Thread t = new Thread(a, "A");Thread t1 = new Thread(a, "B");t.start();t.join();t1.start();}}

• A. A A A B B B B
• B. B A B A B A B
• C. utput order is not guaranteed
• D. ompilation succeed but Runtime Exception
• E. one of these