What is the effect of headlights on driving safety at night?

Headlights play a crucial role in driving safety at night by allowing drivers to see and identify hazards on the road. When visibility is limited due to darkness, headlights illuminate the path ahead, ensuring that drivers can detect obstacles, pedestrians, or road conditions that may affect their driving. This enhanced visibility significantly reduces the likelihood of accidents since drivers can react appropriately to sudden changes or potential dangers.

While headlights do assist somewhat with navigation since they illuminate the road ahead, their primary function is to ensure that hazards are visible, thus making option C the most accurate and relevant choice regarding their effect on driving safety at night.