Three of the panels show this card in a mirror placed along one of its sides or diagonals. Which panel can NOT be a mirror image of the card?

Every mirror image reverses the order of the corners. (b) is the card turned a quarter of the way round: the green L, the orange triangle and the blue circle keep the same turning order, so no single mirror can make it. (a), (c) and (d) are images in an upright, a flat and a slanting mirror.