When is it permissible to use high beams?

Answer: B — On open roads with no oncoming traffic

Using high beams is permissible on open roads with no oncoming traffic because high beams provide maximum visibility and illumination of the roadway ahead. This is particularly advantageous in rural or dimly lit areas where there are fewer streetlights, allowing drivers to see further down the road and spot any potential hazards, animals, or pedestrians well in advance. Additionally, using high beams in these conditions ensures that the driver can make informed decisions about speed and navigation without the risk of glare affecting other drivers, as there is no oncoming traffic. In contrast, using high beams in well-lit areas, when a vehicle is behind you, or in residential areas could create unsafe driving conditions by dazzling other road users, which is why these options are not considered appropriate circumstances for utilizing high beams.