Which practice should you follow to ensure safe driving when traveling near other vehicles?

• Maintain a constant speed directly beside other vehicles.
• Remain in their blind spots to reduce congestion.
• Change lanes frequently to keep up with the fastest traffic.
• Avoid driving side by side with other vehicles and stay out of their blind spots.
  Explanation:

  "Do not travel alongside other vehicles at the same speed. Avoid cars moving in packs. Stay out of other drivers’ blind spots. Change speed and/or lanes so that you don't block the normal flow of traffic."