When should you turn on your headlights?

Answer: B — During dusk, dawn, or when visibility is poor

The correct answer emphasizes the importance of using headlights during specific conditions to ensure safety while driving. Headlights should be turned on during dusk and dawn as light levels can change rapidly, potentially reducing visibility. Additionally, turning on headlights when visibility is poor—such as in fog, rain, or heavy snow—enhances your ability to see the road and makes your vehicle more visible to others. Using headlights only at night, when there are no street lights, or whenever one feels like it does not take into account varying conditions that can significantly impact visibility. Therefore, activating headlights during periods of low visibility and at twilight times is crucial for safety on the road.