What must drivers do when they see a school bus with flashing lights?

Answer: B — Stop regardless of the direction of travel

When drivers see a school bus with flashing lights, they must stop regardless of the direction of travel. This rule is in place to ensure the safety of children who may be entering or exiting the bus. The flashing lights are a warning signal indicating that children are likely nearby, and stopping allows them to cross the street safely. This requirement is reinforced by the fact that children can be unpredictable and may not always be visible to drivers. It is crucial for drivers to come to a complete stop to prevent potential accidents. In many states, including Texas, failing to stop for a school bus with flashing lights can result in significant penalties, including fines and points on a driver's license. Drivers approaching a school bus must always take precautions, as the safety of children is paramount. Therefore, stopping for a school bus when the lights are flashing is a legal requirement and an essential part of safe driving practices.