- AB, C and D
- BC, D and F
- CC, D and E
- DA, C and D
Step-by-Step Solution
The dot is where the top edges of C and D meet. When the net is folded, C and D are side faces and A, carried over by B, becomes the top. The top edges of all four side faces touch the top face, so the corner at the dot is shared by C, D and the top A.
Answer: D) A, C and D