When it is raining, snowing, or icing, what must the driver turn on?

• A. Fog lights only
• B. Emergency lights only
• C. Window wipers and headlights
• D. Brake lights only

Answer: (C)

When driving in conditions such as rain, snow, or icing, turning on the window wipers and headlights is crucial for maintaining visibility and safety. The windshield wipers help clear rain, snow, or ice from the driver's line of sight, allowing for better visibility of the road and other vehicles. Simultaneously, headlights increase the visibility of your vehicle to others, making it easier for other drivers to see you in low-visibility conditions caused by adverse weather.

Using headlights in inclement weather is not just a recommendation but often a legal requirement in many jurisdictions. It enhances safety for both the driver and surrounding vehicles. This practice helps reduce accidents, as other drivers are better informed about your presence on the road, especially when visibility is compromised.

In contrast, while fog lights and emergency lights serve specific purposes, they are not universally required in rain or snow. Brake lights can alert other drivers when you are slowing down, but they do not enhance your forward visibility. Therefore, window wipers and headlights are the essential features for safe driving in adverse weather conditions.