This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Health care of community & international health, Subject name: Social & Preventive Medicine
[{'content': 'All of the following are functions of voluntary health agencies except \nSelect and explain. \nA. Supplementing the work of government agencies, B. Pioneering, C. Demonstration, D. Fund collection', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The type of service rendered by voluntary health agencies have been classified asa)Supplementing the work of government agenciesb)Pioneeringc)Educationd)Demonstratione)Guarding the work of government agenciesf)Advancing health legislationPark 23e pg: 915', 'role': 'assistant'}]