What should drivers do when they see a school bus with its stop sign extended?

Answer: C — Stop and wait until the sign is retracted

When a driver encounters a school bus with its stop sign extended, the appropriate action is to stop and wait until the stop sign is retracted. This law is in place to ensure the safety of children entering and exiting the bus. When the stop sign is extended, it indicates that children may be crossing the street and that vehicles in both directions must come to a complete stop. This helps to create a safe environment for children, who may not always be aware of their surroundings. Stopping is crucial because it gives children the time they need to cross safely, reducing the risk of accidents. Once the bus driver retracts the stop sign and ensures that it's safe, drivers can proceed. This rule applies in most states, underscoring the importance of vigilance around school buses and the protection of young pedestrians.