What action should be taken if you encounter a stopped school bus with its stop sign extended?

Answer: B — Stop and wait until the stop sign is retracted

When you encounter a stopped school bus with its stop sign extended, the correct action is to stop and wait until the stop sign is retracted. This is a critical safety measure designed to protect children who may be getting on or off the bus. School buses are equipped with this stop sign and flashing lights to indicate to drivers that they must stop their vehicles to ensure the safety of students. By stopping, you allow children enough time to cross the street safely, as they might not be visible to passing vehicles and may suddenly emerge from behind the bus or nearby vehicles. Failing to stop can result in severe penalties and fines, as well as endangering the lives of young pedestrians. Thus, stopping when the bus is signaling is not just a matter of traffic law but is paramount for ensuring the safety of children.