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Maik und Sybille wollen mit Freunden an ihrem deutschen Wohnort eine Demonstration auf der Straße abhalten. Was müssen sie vorher tun?
Maik and Sybille want to hold a demonstration with friends in their German place of residence. What must they do beforehand?
Explanation
The correct answer is "Sie müssen die Demonstration anmelden." because it matches the German civic, legal, historical, or institutional fact asked in this question, specifically the topic of Demonstrationssrecht. The other options do not fit the question correctly.