What should you do when approaching an entrance ramp where other vehicles are merging onto the freeway?

• Keep a constant speed
• Match your speed to stop the vehicle from merging safely ahead or behind you
• Match your speed to allow the vehicle to merge safely ahead or behind you
  Explanation:

  "When approaching an entrance ramp where other vehicles are merging onto the freeway, adjust your speed to allow the vehicle to merge safely ahead of you or behind you."
• All of the above