What must you do before making a three-point turn?

• Ensure you do not make a U-turn on a curved road, on or near a railway crossing or hilltop, or near a bridge or tunnel that obstructs your view.
• Make sure the way is clear in both directions.
• Make sure there are no cyclists or pedestrians.
• All of the above
  Explanation:

  "Before making a three-point turn, you must ensure that you are not making a U-turn on a curved road, near a railway crossing, hilltop, bridge, or tunnel that obstructs your view. Additionally, you need to make sure the way is clear in both directions and that there are no cyclists or pedestrians in the vicinity."