What is the output of this program?

(a) H
(b) Hello
(c) Runtime Error
(d) Compilation Error

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import java.util.*; public class genericstack { Stack stk = new Stack (); public void push (E obj) { stk.push (obj); } public E pop() { E obj return obj; } } } class Output { public static void main(String args[]) { genericstack gs = new genericstack (); stk.pop(); } gs.push (36); System.out.println (gs.pop());