What should drivers do when they encounter a stop sign?

Answer: B — Come to a complete stop before the intersection

When drivers encounter a stop sign, they are required to come to a complete stop before proceeding. This action is crucial because it ensures that the driver has an opportunity to check for cross traffic and pedestrians at the intersection, contributing to overall road safety. By stopping completely, the driver can assess the situation before moving forward, minimizing the risk of accidents. Other options may suggest incomplete actions, such as merely slowing down or only stopping when pedestrians are present, which do not fully comply with the law and could result in dangerous situations. A complete stop is the standard practice that allows for a thorough observation of all road users, ensuring that the driver is making an informed and safe decision to move into the intersection.