Under what condition can you safely overtake a vehicle?

Overtaking a vehicle safely requires a clear line of sight and the ability to judge distance effectively. The correct choice emphasizes the importance of visibility, indicating that if you can see safely for approximately 1/3 of a mile ahead, you likely have enough distance to evaluate the oncoming traffic and the road conditions. This visibility allows drivers to make informed decisions about whether it is safe to overtake, significantly reducing the risk of collisions with oncoming vehicles.

Other considerations are also important for safe overtaking. For instance, while it may seem reasonable to overtake a vehicle that is traveling below the speed limit, this does not guarantee safety if visibility is obstructed, or if there's insufficient distance to maneuver. Feeling confident alone is not a reliable basis for making driving decisions, as overconfidence can lead to risky behaviors. Lastly, even if there are no signs prohibiting overtaking, the actual road conditions and visibility, as highlighted in the correct answer, remain the critical factors in ensuring the maneuver is executed safely.