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

The selected combination is correct because both statements address crucial safety measures when using a bus ramp or lift. According to German traffic regulations, it is mandatory that these devices are only operated when the bus is fully stopped. This requirement helps ensure the safety of passengers, especially those with mobility challenges, by preventing accidents or injuries that could occur if the bus were in motion. Following these rules is essential for maintaining safe public transport operations and protecting the well-being of all passengers.