You want to transport a person in a vehicle, and that person must remain seated in a wheelchair during the drive. What must you be aware of?

The selected combination is correct because it encompasses all essential safety measures required for transporting a person in a wheelchair within a vehicle according to German traffic regulations.

1. The motor vehicle must be equipped with a designated wheelchair space to ensure that the wheelchair can be safely and properly secured during transit. This is crucial for the safety of passengers with mobility needs.

2. The wheelchair must be secured using a wheelchair restraint system. This system ensures that the wheelchair does not move during the journey, providing stability and preventing accidents.

3. The person must be secured using a wheelchair-user restraint system, which is typically a harness or seatbelt designed specifically for individuals in wheelchairs. This helps to protect the individual from injury in the event of sudden stops or collisions.

Together, these measures ensure the safety of both the passenger and the driver, in compliance with the German traffic laws that prioritize the protection of vulnerable road users.