Ban Ki-Moon was elected to replace Kofi Annan as secretary general of the United Nations. Where is he from?

Ban Ki-moon is from South Korea. He served as the eighth Secretary-General of the United Nations, holding office from January 1, 2007, to December 31, 2016. His long diplomatic career, including positions within the South Korean government and the United Nations, reflects his strong background in international relations and diplomacy. This native background is significant, as it gives context to his perspective and approach towards global issues during his tenure as Secretary-General.

The other choices pertain to different countries in East and Southeast Asia, none of which have any direct association with Ban Ki-moon's nationality or professional background.