What must you do as driver of a school bus before leaving a bus stop?

Your answer is correct because, before leaving a bus stop, a school bus driver must ensure safety in several ways according to German traffic rules. First, making sure all doors are properly closed prevents children from falling out or getting hurt. Second, checking that no child is in front of the bus is crucial to avoid accidents, as children might be difficult to see from the driver's seat. Third, switching off the hazard warning lights signals to other road users that the bus is about to move, helping reduce confusion and potential accidents. Following all these steps ensures the safety of the children and other road users when the bus starts moving again.