When should you use your vehicle's headlights?

Using your vehicle's headlights in low visibility conditions, such as fog or darkness, is crucial for ensuring safety on the road. Headlights enhance visibility for both the driver and other road users. In conditions like fog, rain, or twilight, natural light is insufficient, making it difficult to see road signs, pedestrians, or other vehicles.

Utilizing headlights during such times helps you see better and also allows others to see you, reducing the risk of accidents. This practice is particularly important when visibility drops below certain thresholds, which can occur not just at night but also during certain weather conditions.

While it's advisable to use headlights at night, low visibility situations can happen any time of day, making option B the most comprehensive and safety-oriented choice. The other options lack the emphasis on safety in various light conditions, which is essential for road navigation.