What should you do when approaching a railway crossing?

• You must slow down and look both ways before crossing the track.
• Never race a train to a crossing.
• Avoid shifting gears while crossing the track.
• All of the above.
  Explanation:

  "When you come to a railway crossing, remember: (1) Slow down, listen, and look both ways to make sure the way is clear before crossing the tracks; (2) Never race a train to a crossing; (3) Avoid shifting gears while crossing tracks."