What should you do if it is not possible to change lanes safely when approaching any stationary emergency vehicle on the side of the road displaying alternating flashing amber lights?

• Come to a complete stop before the vehicle until the lights stop flashing
• Slow down to 10 mph below the posted speed limit and proceed with caution
  Explanation:

  "When you see stationary utility, construction, or maintenance vehicles with flashing amber lights, slow down and move into a lane not adjacent to the vehicle if possible. On highways with at least four lanes, you must change lanes if safe or reduce your speed by 10 mph below the limit and proceed with caution."
• Increase your speed to pass that vehicle quickly
• None of the above