What will happen after compiling and running following code?class A implements Runnable{public void run(){System.out.println("run-a");}}1. public class Test{2.public static void main(String... args){3.A a = new A();4.Thread t = new Thread(a);5.t.start();6.t.start();7.}8. }

• A. un-a
• B. un-a run-a
• C. ompilation fails with an error at line 6
• D. ompilation succeed but Runtime Exception
• E. one of these