What should be checked regarding the headlights during an inspection?

Headlights play a crucial role in ensuring safe driving conditions, especially in low-light situations or during inclement weather. During an inspection, it's essential to verify that the headlights are clean and functioning properly. This includes checking that they illuminate adequately, allowing the driver to see the road clearly and be seen by others.

Additionally, a clean headlight lens is critical because dirt, grime, or foggy buildup can drastically reduce visibility, making it difficult for the driver to spot hazards and for other drivers to see the vehicle. Proper functioning includes verifying that both high beams and low beams are operational, ensuring that the vehicle meets safety regulations and enhances driving safety.

The other options do not address the fundamental safety requirements tied to headlights, focusing instead on aesthetics or misconceptions about their functionality. It's vital to prioritize the operational integrity of headlights, as they are a key component in vehicle safety.