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Aus welchem Land kamen die ersten Gastarbeiterinnen und Gastarbeiter in die Bundesrepublik Deutschland?
From which country did the first guest workers come to the Federal Republic of Germany?
Explanation
The correct answer is "Italien" because it matches the German civic, legal, historical, or institutional fact asked in this question, specifically the topic of Erste Gastarbeiter. The other options do not fit the question correctly.