What is correct in this situation?

Answer 1 is correct because the warning sign with the black “X” indicates an intersection where the normal priority rule applies. In Germany that means “right before left”: if there are no priority signs (like “give way” or “priority road”) and no traffic lights, you must yield to any vehicle coming from your right.

That also explains why answer 2 (“I have right of way”) is not automatically true here. Without a priority sign in your direction, you only have priority if no one is approaching from your right.

Answer 3 (“a traffic-calming zone ends”) would require the specific “end of traffic-calming zone” sign. The shown sign is not that; it only warns you that right-before-left applies at the upcoming junction.

Rule of thumb for similar questions: If you see the “X” warning sign, expect right-before-left at the next intersection and approach ready to brake and yield to the right.