What is the correct response if, when reversing a combination vehicle the view to the rear is impeded?

In situations where a combination vehicle is reversing and the driver's view to the rear is obstructed, German traffic regulations prioritize safety. The correct response is to stop the vehicle if the line-of-sight to the person directing is broken. This is crucial because having a person direct the maneuver helps ensure that the vehicle moves safely, as they can guide the driver and signal when to stop or proceed.

The other options are incorrect because they either misinterpret the need for a directing person or limit that requirement only to specific circumstances, which is not aligned with the overall safety protocols for reversing in traffic. Understanding and adhering to these regulations is essential for preventing accidents and ensuring safe navigation, especially in complex environments like busy roads or factory premises.