Which three code fragments, added individually at line 29, produce the output 100? (Choose three.)
10. class Inner {
11. private int x;
12. public void setX( int x ){ this.x = x; }
13. public int getX(){ return x;}
14. }
15.
16. class Outer {
17. private Inner y;
18. public void setY( Inner y ){ this.y = y; }
19. public Inner getY() { return y; }
20. }
21.
22. public class Gamma {
23. public static void main(String[] args) {
24. Outer o = new Outer();
25. Inner i = new Inner();
26. int n = 10;
27. i.setX(n);
28. o.setY(i);
29. // insert code here
30. System.out.println(o.getY().getX());
31. }
32.}