What is the primary purpose of a warning sign?

Answer: B — To alert drivers of potential hazards ahead

The primary purpose of a warning sign is to alert drivers of potential hazards ahead. These signs are designed to give drivers advance notice of conditions that may require caution, such as curves in the road, pedestrian crossings, animal crossings, or construction zones. The intention is to help drivers prepare for safely navigating through these areas by slowing down or taking additional precautions, thus increasing overall roadway safety. In contrast, speed limit signs serve a specific function of indicating the maximum allowable speed, regardless of environmental conditions. Directional signs provide guidance on where to go, and signs that inform drivers about road conditions supply information about the current state of the road rather than alerting them to forthcoming hazards. Each type of sign has its distinct role, but warning signs are specifically focused on proactively notifying drivers of potential risks they may encounter.