Which of the following organizations brings out the publication known as 'World Economic Outlook'?

The 'World Economic Outlook' (WEO) is a flagship publication produced by the International Monetary Fund (IMF). It is published twice a year, usually in April and October, with analytical chapters and updates released in between. The report provides a comprehensive analysis of the global economic situation, presenting the IMF's analysis of current and prospective economic developments at the global and country levels, including projections for growth, inflation, and other key economic indicators.

The other organizations mentioned have their own distinct publications:

The United Nations Development Programme (UNDP) publishes the 'Human Development Report'. The World Economic Forum (WEF) publishes various reports, including the 'Global Competitiveness Report' and the 'Global Risks Report'. The World Bank publishes the 'World Development Report' and 'Ease of Doing Business' report (though the latter has been discontinued in its original form).