The word MATHS, written with straight strokes, is painted on a wall just above a pond. Which panel shows its image in the water?

A water image turns each letter upside down but keeps the order M A T H S. H looks the same, the M looks like a W, the A becomes a V with a bar, the T stands on its bar, and the S turns into a 2-like shape: (c). (d) forgets to turn the S; (a) reverses the order and (b) is a half-turn.