A toy truck has its yellow cabin on the right and a small orange flag above the back of its blue body. Which panel is the truck's mirror image?

The mirror swaps left and right only: the cabin with its sloping front is now on the left, and the flag pole stands at the right end of the body with the flag pointing left: (a). (b) is the truck unchanged, (c) is upside down and (d) is a half-turn.