In each dial the orange needle turns by the same angle every step, and the dots below it change in number. Which dial comes next?

The needle turns $30^{\circ }$ anticlockwise each step $(0^{\circ },30^{\circ },60^{\circ },90^{\circ })$, and the dots drop by one (5, 4, 3, 2). The next dial has the needle at $120^{\circ }$ — one-third of the way from straight up to pointing left — and 1 dot: (b). (a) turns the needle back, (c) turns it $45^{\circ }$ and (d) keeps 2 dots.