How many squares are there in the given figure?

Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4. i.e. 20.

20 squares: ABKL, BCJK, JKNO, KLMN, ACOM, DEHI, EFGH, GHQR, HIPQ, DFRP, XWZY, WVA'Z, AZI'H', YZI'J', XVH'J', UTC'B', TSD'C', B'C'F'G', C'D'E'F', USE'G'.