What tends to cause collisions on the road?

• All vehicles are traveling near or at the same speed
• One lane of traffic is traveling much slower than the others
• One vehicle is traveling faster or slower than the flow of traffic
  Explanation:

  "Collisions on the road often occur when one vehicle is traveling at a different speed than the flow of traffic. Such speed variances can lead to unsafe conditions, making it important for drivers to maintain a speed consistent with the surrounding traffic for safety."
• All of the above