Secretary-General of the United Nations
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Ban Ki-moon
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Dominique Strauss-Kahn
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Hisashi Owada
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Muhammad al-Baradei
A
Correct answer
Explanation
Ban Ki-moon served as Secretary-General of the United Nations from 2007-2016. He was the eighth UN Secretary-General from South Korea. The question asks about the UN Secretary-General role without specifying the timeframe. Dominique Strauss-Kahn led IMF, Hisashi Owada was an ICJ judge, and Muhammad al-Baradei headed IAEA - none were UN Secretary-General.