Arrange the following Secretary General of United Nations in ascending chronological order.
A. U. Thant, Boutros Boutros Ghali, Kofi Annan, Ban KiMoon
B. Ban Ki Moon, Kofi Annan, Boutros Boutros Ghali, U.Thant
C. Boutros Boutros Ghali, U.Thant, Ban Ki Moon, KofiAnnan
D. Boutros Boutros Ghali, Ban Ki Moon, U. Thant, Kofi Annan
Answer:A
Arrange the following Secretary General of United Nations in ascending chronological order.
A. U. Thant, Boutros Boutros Ghali, Kofi Annan, Ban KiMoon B. Ban Ki Moon, Kofi Annan, Boutros Boutros Ghali, U.Thant C. Boutros Boutros Ghali, U.Thant, Ban Ki Moon, KofiAnnan D. Boutros Boutros Ghali, Ban Ki Moon, U. Thant, Kofi Annan