1. The problem asks to identify which three yellow squares are missing from the main 4x4 grid with a 2x2 empty space in the middle. 2. The main shape has 12 yellow squares arranged in an L shape around the empty 2x2 center. 3. Each yellow square contains either a small dark circle or an empty circle, and some are diagonally divided. 4. The options A, B, C, and D each show three yellow squares in an L shape with two small dark circles and one empty circle. 5. To solve, compare the pattern of circles and diagonal lines in the missing three squares of the main shape with each option. 6. The missing three squares must continue the L shape and match the pattern of circles and diagonal lines. 7. By analyzing the pattern, Option D matches the missing three squares in shape, circle placement, and diagonal lines. Final answer: The missing three squares are those shown in Option D.