Answer:
Stop until the stop signal on the bus is withdrawn.
Step-by-step explanation:
On all undivided highways (without a median), traffic in both directions must stop at least 20 feet from a stopped school bus that has its red lights flashing. You must not pass the bus until the lights are turned off or the bus starts moving. You should always remember that the stop sign and flashing lights on the bus is always treated as a stop sign.