On these dials the long orange hand and the short hand both move. Look at the long hand and at the angle between the two hands. Which dial comes next?

The long hand turns a quarter turn clockwise each step: up, right, down, left. The short hand always lags behind it (anticlockwise of it), and the angle between them grows by $30^{\circ }$ each time: $30^{\circ },60^{\circ },90^{\circ },120^{\circ }$. Next the long hand points up and the short hand is $150^{\circ }$ behind it, pointing to the lower left: (a). (b) keeps the angle at $120^{\circ }$, (c) turns the long hand the wrong way and (d) swaps the hands.