- A4
- B6
- C8
- D12
Step-by-Step Solution
A cube with one green face lies on a side face but not at an upright edge, where two sides meet. On each side face that is the middle column of 3 cubes, top to bottom (the top and bottom are unpainted, so they do not add a face). . (4 counts only the very middle squares.)
Answer: D) 12