What is the primary purpose of vehicle lights?

The primary purpose of vehicle lights is to see clearly and to be seen by others. Adequate lighting is essential for safe driving, particularly during low visibility conditions such as at night or during adverse weather. Headlights illuminate the road ahead, allowing the driver to identify obstacles, pedestrians, and other vehicles. In addition, taillights and turn signals inform other road users when a vehicle is stopping, turning, or changing lanes, thus preventing accidents. This dual function of illumination and visibility is crucial for ensuring safety on the road.

While signaling other drivers is an important function of vehicle lights, it is a part of the broader necessity of being seen, which encompasses overall safety. Other options, such as providing entertainment or enhancing appearance, do not contribute to the fundamental safety functions of vehicle lights and are not their intended purpose.