Question id 145 - Flight performance and planning - EASA Drone Quiz

Distance between the point where the UAV would touch the ground falling vertically and the position of those not involved + a margin of 50 metres
Distance between the point where the UAV would touch the ground falling vertically and the position of the persons not involved + a margin of 5 metres
Distance between the point where the UAV would touch the ground falling vertically and the position of persons not involved
None of the other answers is correct