Two positions of a rotated cube are shown below.

Which shape will be at the bottom, when '$$∙$$​ ' is on the top?

Logic: If one face is common in two dice views, the other faces in both views are adjacent to it. By following the faces in a clockwise direction around the common face. The opposite face of the common one will never be visible(Hidden face).

●  ↔ ◼ (Hidden Face)

Therefore, ●  ↔ ◼ (Circle Opposite to square)

Thus, the correct option is (d)