The small-letter word bead is written on a card in front of the dashed mirror. Which panel shows what the mirror shows?

Reverse the order (d a e b) and flip every letter: a flipped d looks like b, a flipped b looks like d, and the a and e face backwards: (d). (b) reverses the order without flipping (it would read 'daeb'), (a) flips the letters in place, and (c) is a half-turn.