This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
[{'content': 'UNDP works as \nSelect and explain. \nA. The main source of funds for child health, B. The main source of funds for technical assistance, C. The Source of funds for research and development, D. Education source for developing countries', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]