Why might driving along this road become dangerous?

Your answer is correct because in this situation, two main dangers arise:

First, people on the road can be easily overlooked because of the darkness and the presence of many parked vehicles along the street. This reduces the visibility of pedestrians, making it harder to spot them in time.

Second, poorly lit vehicles parked along the side can be difficult to detect in low light conditions, increasing the risk of collision when passing by or turning.

The third option, about oncoming vehicles being detected late, is less relevant here because the road appears one-way or you are driving with your headlights on, and oncoming traffic visibility isn't the main issue.

Remember, in dark or poorly lit roads, always drive cautiously and reduce speed to better recognize pedestrians and poorly visible vehicles. This will help you react safely to any unexpected hazards.