On each dial the long orange hand and the short dark hand turn about the centre, each by its own fixed angle and in its own direction. Which dial comes next?

The long hand turns $90^{\circ }$ clockwise each step (up, right, down, left) and the short hand turns $45^{\circ }$ anticlockwise (right, up-right, up, up-left). Next the long hand points up and the short hand points left: (d). (a) forgets to move the short hand and (b) forgets the long hand.