When should headlights be used for safety?

Answer: B — When visibility is poor

Using headlights for safety is crucial when visibility is poor. This includes conditions such as rain, fog, snow, or heavy overcast days where natural light is insufficient. Headlights help improve your visibility to other drivers and pedestrians, enhancing overall safety on the road. It's important to remember that visibility can be affected by various environmental factors, and using headlights ensures that other road users can see you clearly. Additionally, using headlights in low visibility conditions is often legally required and is a common practice to prevent accidents. Headlights should not be limited to just daytime or nighttime use, nor should they solely be used when you see other vehicles. Proper use of headlights is about ensuring that you can see the road effectively while allowing others to see you, which is vital for safe driving.