When should you use your high beam headlights?

Answer: C — On open roads with no oncoming traffic

Using high beam headlights is appropriate when driving on open roads with no oncoming traffic because they illuminate a larger area ahead, enhancing visibility for the driver at greater distances. This can be particularly beneficial in rural or isolated areas where street lighting may be minimal, allowing you to notice potential obstacles, animals, or pedestrians more effectively. In contrast, high beams should not be used in heavy traffic or on well-lit urban roads, as they can dazzle other drivers and create dangerous driving conditions. Similarly, when driving near schools, it's important to use low beams to ensure the safety and comfort of children and other pedestrians who may be present.