The year 1958 is carved into the stone of an old step-well, just above the water. Which panel shows the year reflected in the water?

The digits keep their order 1 9 5 8 and each turns upside down: the 1's flag goes to the bottom, the 9 gets its loop at the bottom, the 5 looks like a 2 and the 8 does not change: (b). (a) forgets to turn the 1, (c) reverses the order and (d) is a half-turn.