What is the purpose of a stop sign?

The purpose of a stop sign is to indicate that a driver must come to a complete stop at the intersection where the sign is placed. This ensures that drivers pause and assess the situation before proceeding, allowing them to check for oncoming traffic, pedestrians, or other potential hazards. By enforcing a complete stop, the sign enhances safety at intersections, helping to prevent accidents and ensuring that all road users can navigate the area with caution and awareness. The other options do not accurately represent the function of a stop sign and could lead to misunderstandings about traffic rules and safety.