- A(a)
- B(b)
- C(c)
- D(d)
Step-by-Step Solution
The orange cells are turned a quarter turn clockwise about the centre of the grid (the top-left and top-middle cells go to the top-right and middle-right), while the blue cells are reflected in the upright centre line (bottom-left and bottom-middle become bottom-right and bottom-middle). In C the orange cells at middle-left and bottom-middle turn to top-middle and middle-left, and the blue cells at bottom-left and top-left reflect to bottom-right and top-right: (d). (a) turns the whole grid, (b) gives each colour the other move and (c) turns the orange cells anticlockwise.
Answer: D) (d)