When do drivers need to use headlights according to Texas law?

Answer: B — From sunset to sunrise and in poor visibility

In Texas, the law mandates that drivers must use headlights from sunset to sunrise and during periods of poor visibility, which includes inclement weather conditions such as rain, fog, or snow. This requirement is in place to ensure that drivers can see adequately and be seen by others, enhancing safety on the road. Using headlights from sunset to sunrise is straightforward, as natural light diminishes, making it difficult to see other vehicles, pedestrians, or obstacles. Additionally, the provision for poor visibility means that even if it is daytime, headlights should be activated in situations like heavy rain or fog, where visibility is significantly reduced. This dual requirement reinforces the idea that safety should always be a priority on the roads, regardless of the time of day or specific weather conditions. Other options do not capture the full range of circumstances when headlights are necessary according to Texas law. For instance, limiting headlight use solely to nighttime does not account for adverse weather conditions that warrant their use during the day. Similarly, stipulating that headlights should only be on during rain or fog within certain contexts fails to include the nighttime requirement, which could create unsafe driving conditions.