Why should a vehicle avoid following too closely behind cyclists?

• Cyclists can stop suddenly without warning.
• Cyclists ride unpredictably.
• Cyclists do not have brake lights to signal when they are stopping.
  Explanation:

  "Unlike motor vehicles, bicycles do not have brake lights to signal when they are slowing down or stopping. This makes it difficult for drivers to anticipate sudden stops, increasing the risk of a collision."
• All of the above.