Arrange the following UN Secretary Generals in order of their tenure.
(A) Javier Perez de Cuellar
(B) Ban Ki- Moon
(C) U Thant
(D) Kofi A Annan
(E) Boutros Boutros Ghali

Choose the correct answer from the options given below :
(1) (C), (A), (D), (E), (B)
(2) (C), (A), (E), (D), (B)
(3) (C), (E), (A), (D), (B)
(4) (E), (C), (A), (B), (D)

2

The correct answer is Option 2 - 2 [(C), (A), (E), (D), (B)]

The UN Secretaries-General in the correct chronological order by their tenure are:

(C) U Thant - Served from 1961 to 1971.
(A) Javier Perez de Cuellar - Served from 1982 to 1991.
(E) Boutros Boutros-Ghali - Served from 1992 to 1996.
(D) Kofi A. Annan - Served from 1997 to 2006.
(B) Ban Ki-moon - Served from 2007 to 2016.

Based on this order, the correct sequence is: (C), (A), (E), (D), (B)

UN Secretary Generals in chronological order:

1. Trygve Lie (1946-1952), Norway.
2. Dag Hammarskjöld (1953-1961), Sweden.
3. U Thant (1961-1971), Burma (Myanmar).
4. Kurt Waldheim (1972-1981), Austria.
5. Javier Perez de Cuellar (1982-1991), Peru.
6. Boutros Boutros-Ghali (1992-1996), Egypt.
7. Kofi A. Annan (1997-2006), Ghana.
8. Ban Ki-moon (2007-2016), Republic of Korea (South Korea).
9. António Manuel de Oliveira Guterres (2017-), Portugal.