On a road with three or more lanes moving in the same direction, which vehicle must yield the right-of-way?

• The vehicle entering the lane of traffic from the left.
• The vehicle already in the lane of traffic.
• The vehicle entering the lane of traffic from the right.
  Explanation:

  "On a road divided into three or more lanes with traffic moving in the same direction, a vehicle entering a lane of traffic from the right must yield the right-of-way to a vehicle entering the same lane of traffic from the left."
• The vehicle in the middle lane.