What should you do if you encounter a stop sign?

Answer: B — Come to a complete stop and yield to any traffic.

When encountering a stop sign, it is essential to come to a complete stop and yield to any traffic. This action is vital for ensuring safety at intersections, as it allows you to assess the situation thoroughly before proceeding. By stopping completely, you give yourself the opportunity to look for oncoming vehicles, pedestrians, and any other potential hazards that may be present. The requirement to yield means that if there's any traffic approaching from either direction, you must allow that traffic to pass before you proceed. This is particularly important in busy areas or during times of heavy traffic, where failing to stop could lead to dangerous collisions. The complete stop ensures that you do not miss any critical factors that could affect your safety and the safety of others on the road.