Fold a square sheet three times as shown (top onto bottom, right onto left, then top onto bottom again) and punch one hole. Which figure shows the sheet when it is opened?

Undo the folds in reverse. The last fold gives 2 holes one above the other; the right-onto-left fold mirrors them to the right edge (4 holes); the first fold mirrors all 4 into the top half. That makes two columns of 4 holes near the left and right edges: (d).