What should you do if your headlights fail?

Answer: B — Turn on your parking and hazard lights and exit the roadway immediately

When your headlights fail, turning on your parking and hazard lights and exiting the roadway immediately is the safest course of action. This approach increases your visibility to other drivers and alerts them to your situation, reducing the risk of an accident. By utilizing your hazard lights, you effectively signal that you are in distress, allowing others to recognize the need to create space around you. Exiting the roadway promptly ensures that you are out of harm's way, as remaining on the road without proper lighting can lead to dangerous situations. Additionally, moving to a safe location allows you to address the issue without putting yourself and others at risk. Other options may not adequately address the danger of being on the road with non-functional headlights. For instance, merely pulling off when convenient could delay your response, potentially leaving you on the roadway longer than necessary. Pumping brakes may not effectively communicate your situation to drivers behind you, and following closely behind another vehicle can further reduce safety by creating a reliance on their headlights for guidance.