When could a dangerous situation arise here?

In the given scenario, you've correctly identified that dangerous situations could arise if you continue driving at the same speed or if the cyclist changes to your lane. This aligns with German traffic rules emphasizing the importance of being aware of cyclists and adjusting your speed and position accordingly.

By maintaining your speed without assessing the cyclist's potential actions, you might create a risk of collision. Similarly, if the cyclist shifts to your lane, it's crucial to be prepared to yield or change your driving behavior to ensure safety for both parties.

In contrast, if the cyclist stops at the end of the cycle path, it does not inherently pose an immediate danger unless accompanied by other actions. Thus, recognizing the correct combination of answers underlines the significance of vigilance on the road, particularly when sharing it with cyclists.