Through her rear-view mirror Neha sees the board on the van behind her exactly as shown. Which panel shows the board as it really reads?

A mirror image of a mirror image is the original, so reflect the picture left-to-right once more: the letters come back in the order S C H O O L and each letter faces the normal way: (a). (b) is the reflection itself, (c) puts the letters in the right order but leaves S and C reversed, and (d) is upside down.