What do you have to be aware of in this situation?

Your answer is correct.

In this situation, you must drive with particular care because you may be poorly visible to other road users. The trees lining the road create alternating light and shadow patterns, which can make it difficult for both you and other drivers to spot hazards quickly. This reduces overall visibility and can increase the risk of accidents.

The option that you are more easily able to judge distances is incorrect, because the shadows and the repetitive pattern of the trees can actually make distance estimation more challenging, not easier.

Remember, when visibility is limited due to lighting conditions or roadside features, always reduce speed and increase your attention to ensure safe driving.