This is an old question that is no longer in use.
Images may be missing and the information may be dated.
The car in the image is coming towards you. The headlights of the oncoming car are broken on side B. Which alternative is true in the dark?
If only headlights B are broken, you may think that you have a wider margin than what is actually the case and therefore drive too close to the middle of the road:
There is also a driving licence book online (2023).
More examples of explanations: