What is the rule for stopping when a school bus on a two-way road has its red lights flashing?

Answer: D — you must yield or stop

When a school bus on a two-way road has its red lights flashing, drivers must adhere to the rule of yielding or stopping. This means that all vehicles in both directions must come to a complete stop until the bus turns off its flashing red lights and begins to move. This rule ensures the safety of children who may be crossing the road to board or exit the school bus. It is crucial to follow this rule to prevent accidents and protect the well-being of students. Option A is incorrect because stopping in a safe area on a narrow roadway does not address the specific situation involving a school bus with its red lights flashing. Option B is incorrect as it introduces a complicated and unnecessary method of counting seconds which is not a part of the standard rules for dealing with a school bus with its red lights flashing. Option C is incorrect as it suggests pulling over to the right-hand side of the street, which may not be the appropriate action when a school bus has its red lights flashing. The correct action is to stop regardless of which side of the street you are on. Therefore, the correct answer is D - you must yield or stop.