21. 

Choose the box that is similar to the box formed from the given sheet of paper (X).

A. 1 only
B. 1, 2 and 3 only
C. 2 and 3 only
D. 1, 2, 3 and 4

22. 

Choose the box that is similar to the box formed from the given sheet of paper (X).

A. 1 only
B. 1 and 3 only
C. 1, 3 and 4 only
D. 1, 2, 3 and 4

23. 

Choose the box that is similar to the box formed from the given sheet of paper (X).

A. 1 and 2 only
B. 1 and 3 only
C. 3 and 4 only
D. 1, 2, 3 and 4