​In which of the following cities, United Nation's subsidiary regional headquarters is NOT opened?​

Correct option is D

​The correct answer is (d) Rome.

The United Nations (UN) has several subsidiary regional headquarters located around the world to facilitate its operations. These are:

• Nairobi: Home to the United Nations Office at Nairobi (UNON), which serves as the UN’s headquarters in Africa.
• Vienna: The United Nations Office at Vienna (UNOV) focuses on international security, crime prevention, and space.
• Geneva: The United Nations Office at Geneva (UNOG) deals with humanitarian issues and serves as a hub for diplomacy.
• Rome: While Rome is home to specialized UN agencies like the Food and Agriculture Organization (FAO) and the World Food Programme (WFP), it does not host a regional headquarters or an official UN subsidiary office like the others.

Information Booster:

• New York: The main headquarters of the United Nations.
• United Nation Environment Programme headquartered at Nairobi, Kenya.

International Organisation having Headquarter at Geneva:

• World Trade Organization (WTO)
• World Health Organization (WHO)
• International Labour Organization (ILO)
• International Telecommunications Union (ITU)
• World Meteorological Organization (WMO)
• World Intellectual Property Organization (WIPO)
• The Office of the UN High Commissioner for Human Rights (UNHCHR)

International Organisation having Headquarter at Vienna:

• International Atomic Energy Agency (IAEA)
• United Nations Industrial Development Organization (UNIDO)
• United Nations Office for Outer Space Affairs (UN-OOSA)
• United Nations Office on Drugs and Crime (UNODC)