Which vehicles must you allow to set off from marked bus stops?

You allowed the correct vehicles to set off from marked bus stops, which are regular buses and school buses. According to German traffic regulations, when these vehicles depart from their designated stops, they have the right of way, and you are required to yield to them. This is crucial for ensuring public transportation efficiency and the safety of passengers, especially children in the case of school buses. Taxis, however, are not required to be yielded to in this context, which is why they are not included in the correct answer. Recognizing and adhering to these rules helps maintain order and safety on the roads.