第28題Given:1. class X{2. X(){System.out.print(1);}3. X(int x){4. this();5. System.out.print(2);6. }7. }8. public class Y extends X{9. Y(){10. super(6);11. System.out.print(3);12. }13. Y(int y){14. this();15. System.out.println(4);16. }17. public static void main(String[] a){new Y(5);}18. }What is the result?
(A) 13
(B) 134
(C) 1234
(D) 2134
(E) 2143F. 4321