What does the Fog Light system on Nissan trucks assist with?

The Fog Light system on Nissan trucks is specifically designed to enhance visibility during conditions such as fog, rain, or snow. Unlike standard headlights, fog lights emit a low, wide beam of light that is directed toward the road. This helps illuminate the area immediately in front of the vehicle without reflecting too much light back into the driver's eyes, which can occur with high beams in such weather conditions.

Fog can significantly reduce visibility, and using fog lights allows drivers to see better at close range when the visibility is compromised. They are positioned lower on the vehicle and have a specific beam pattern to cut through dense fog, rain, or snow, making them very effective in these circumstances.

In contrast to other options, the fog light system does not directly increase fuel efficiency, reduce glare from oncoming traffic, or specifically enhance nighttime visibility beyond what regular headlights already provide. Thus, understanding the particular function and benefit of fog lights in adverse weather conditions helps clarify why option B is the most accurate choice.