What must you heed in this situation?

When a school bus is stopped at a bus stop with its warning lights on and passengers are getting on or off, German traffic rules require special caution. You must only pass the bus at walking speed and only if you can ensure that no passengers, especially children, are endangered. Passing at normal speed or without checking for the safety of passengers is not allowed. That's why both answer 1 (pass at walking speed only) and answer 2 (pass only if you are sure passengers are not endangered) are correct. This rule is designed to protect vulnerable passengers, particularly children, who may unpredictably cross in front of or behind the bus. If you follow these steps in similar situations, you will act safely and in accordance with German traffic law.