Which three code fragments, added individually at line 29, produce the output 100? (Choose three.)

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 29
30. System.out.println(o.getY().getX());
31.
32. }
33. }

A.
n = 100;

B.
i.setX( 100 );

C.
o.getY().setX( 100 );

D.
i = new Inner(); i.setX( 100 );

E.
o.setY( i ); i = new Inner(); i.setX( 100 );

F.
i = new Inner(); i.setX( 100 ); o.setY( i );

Explanation:
A: 10

B: 100

C: 100

D: 10

E: 10

F: 100