Answer: D (16)
Explanation:
Since we are given the side length of one small square is 2, the area of one small square would be 2⋅2 which would equal 4.
Since there are 4 shaded small squares, and the area of one shaded small square is equal to 4. You would multiply 4⋅4 to get a shaded area of 16
So, D (16) would be the correct answer.
:)