What action must you take when driving in foggy conditions?

Answer: C — Use your low-beam headlights

In foggy conditions, using low-beam headlights is essential for enhancing visibility without causing glare. High beams can reflect off the fog, rain, or snow, making it difficult to see and potentially blinding the driver. Low beams are designed to illuminate the roadway directly in front of your vehicle, providing a better view of the road and any obstacles. This type of lighting helps you see through the fog while minimizing reflection and ensuring that drivers in vehicles behind you are not dazzled. Additionally, maintaining a slower speed is advisable in foggy weather as it allows for better reaction times and reduces the risk of accidents. Hence, turning on low beams is a critical response to ensuring safety while driving under these challenging conditions.