If you see an oncoming vehicle in your lane, what should you do to avoid a head-on collision?

Steering right toward the shoulder or curbline is the appropriate response when encountering an oncoming vehicle in your lane. This action helps to create space and avoid a head-on collision by moving out of the path of the oncoming car. The shoulder or curbline can provide a safe area to maneuver, potentially preventing a collision and allowing the oncoming vehicle to pass safely.

In contrast, attempting to accelerate to pass would increase the risk of a collision, as it could put you directly in the path of the other vehicle. Honking your horn might alert the other driver, but it does not provide a solution to the imminent danger. Slowing down and staying in your lane could result in a collision if the oncoming vehicle does not have sufficient time or space to rectify its position. Thus, steering right is the safest and most effective way to avoid a head-on collision in this scenario.