What must a driver do when approaching a stop sign?

Answer: B — Come to a complete stop

When a driver approaches a stop sign, the requirement is to come to a complete stop. This means that the vehicle must halt at the designated stop line, crosswalk, or intersection, allowing enough time to assess the surrounding traffic conditions. Failing to stop entirely can lead to traffic violations and pose safety risks to pedestrians and other vehicles, as it does not allow the driver to evaluate whether it is safe to proceed. This rule is in place to ensure that drivers are fully aware of their surroundings, especially in intersections where visibility may be limited. Coming to a complete stop provides the opportunity to yield the right-of-way to any pedestrians crossing or to vehicles that may have the right-of-way from an adjacent road or lane. It emphasizes the importance of caution and awareness when navigating potentially busy areas.