Which of the following is not an international economic organization?

The World Health Organization (WHO) is not an international economic organization. The WHO is a specialized agency of the United Nations that is primarily focused on international public health issues, such as disease control and prevention, health promotion, and health system development. On the other hand, the Economic Commission for Africa (ECA), African Development Bank (ADB), and International Monetary Fund (IMF) are all international economic organizations. The ECA is a regional body of the United Nations that aims to promote economic and social development in Africa. The ADB is a multilateral development finance institution that provides loans, grants, and technical assistance to support economic development in Africa. The IMF is an international organization that works to promote global financial stability and facilitate international trade by providing financial assistance to member countries and promoting economic cooperation.