Final answer:
You must use your headlights between 30 minutes before sunset and 30 minutes after sunrise to ensure visibility in low light conditions and comply with safety regulations. Additionally, headlights should be used in poor weather conditions that affect visibility. The correct answer to this question is C. Between 30 minutes before sunset and 30 minutes after sunrise
Step-by-step explanation:
The question, "When must you use your headlights?" is related to safe driving practices during times when visibility is reduced. The correct answer to this question is C. Between 30 minutes before sunset and 30 minutes after sunrise. This rule ensures that your vehicle is visible to other drivers during the low-light conditions of dawn and dusk, as well as full darkness. It is important to turn on your headlights during these times, not just for your own visibility, but also to make sure other vehicles can see you.
Additionally, using headlights when visibility is poor due to weather conditions such as fog, rain, or snow is crucial for safety. Though not explicitly stated in the question, these conditions also typically require the use of headlights. Always check and follow your local regulations as they may have specific requirements concerning headlight use. Therefore, the correct answer to this question is C. Between 30 minutes before sunset and 30 minutes after sunrise