Square $W X Y Z$ is divided into 100 small identical squares. Some small squares are shaded and some are unshaded, as shown. How many more of the small squares need to be shaded so that $75 \%$ of the area of $W X Y Z$ is shaded?
(A) 3
(B) 4
(C) 5
(D) 6
(E) 7

![](https://cdn.mathpix.com/cropped/2024_04_20_46ead6524a8d61e21c51g-003.jpg?height=320&width=338&top_left_y=930&top_left_x=1338)
Of the 100 small identical squares, 28 are presently unshaded, and so $100-28=72$ are shaded. So that $75 \%$ of the area of $W X Y Z$ is shaded, 75 of the 100 small squares must be shaded. Therefore, $75-72=3$ more of the small squares must be shaded.

ANswer: (A)