Correct option is B
Logic: Count the total number of squares in the given 4 × 4 grid systematically.
Counting Individual Squares:
1 × 1 squares: There are 16 small squares (4 rows × 4 columns).
2 × 2 squares: There are 9 squares (3 rows × 3 columns).
3 × 3 squares: There are 4 squares (2 rows × 2 columns).
4 × 4 squares: There is 1 big square covering the entire grid.
Total Count: 16 + 9 + 4 + 1 =30
Thus, the correct option is:(b) 30
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