What must you remember when you want to use the ramp or lift of a bus?

The correct choices indicate essential safety rules for using ramps and lifts on buses. According to German traffic regulations, it is crucial that any ramp or lift is only moved when the vehicle is stationary. This ensures the safety of all passengers and prevents accidents.

By selecting options 1 and 2, you acknowledge that both the ramp and lift must be operated while the bus is completely still, which aligns with safety protocols to avoid injuries and ensure stability during use.

The option about moving ramps and lifts while the bus is setting off is incorrect since it poses a significant safety risk to passengers who might be entering or exiting the bus. Following these rules is vital to ensure everyone's safety and smooth operation of public transport.