Concept:Boutros Boutros-Ghali of Egypt was the first African Secretary-General of the United Nations.Explanation:Boutros Boutros-Ghali was an Egyptian diplomat and politician. He served as the sixth Secretary-General of the UN from January 1992 to December 1996. He was later succeeded by Kofi Annan, who became the second African Secretary-General. Therefore, the first African occupant of the office was Boutros Boutros-Ghali.Answer:A. Boutrous Boutrous-Ghali