A. United Nations Industrial Development Organization
B. Organization of Petroleum Exporting Countries
C. United Nations Development Programme
D. International Atomic Energy Agency
✅ The correct answer is option C.
The headquarter of all the following international organization are based at Vienna, excepted United Nations Development Programme. Headquartered in New York City, the status of UNDP is that of an executive board within the United Nations General Assembly. The UNDP Administrator is the third highest-ranking official of the United Nations after the United Nations Secretary-General and Deputy Secretary-General.
The headquarter of all the following international organization are based at Vienna, excepted United Nations Development Programme. Headquartered in New York City, the status of UNDP is that of an executive board within the United Nations General Assembly. The UNDP Administrator is the third highest-ranking official of the United Nations after the United Nations Secretary-General and Deputy Secretary-General.