The correct option is C World Health Organisation
The ECOSOC conducts studies on economic, social, health, education and cultural issues. It looks into global issues like refugee problems, women’s status and living conditions of people in the world. The ECOSOC makes recommendations on matters related to human rights and basic freedoms around the world. ECOSOC organises conferences on human resources, culture, education and other issues. The ECOSOC coordinates the work of the International Labour Organisation, Food and Agriculture Organisation, the World Health Organisation and other institutions.