When must a rider use high-beam lights at night?

Answer: B — When not following or meeting a vehicle

Using high-beam lights at night is appropriate when a rider is not following or meeting another vehicle. High beams provide greater visibility by illuminating a broader area and further down the road, which is particularly beneficial in dark conditions, such as country roads or unlit streets. However, it's important to switch to low beams when encountering oncoming traffic or when closely following another vehicle. This practice is crucial for preventing glare that can dazzle other drivers and lead to dangerous driving situations. In situations where you are meeting or following another vehicle, low beams are more suitable as they reduce the chance of blinding the other driver. This not only ensures safety for everyone on the road but also adheres to traffic regulations aimed at promoting safe night driving practices.