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': 'Concept of multipurpose workers was given by: \nSelect and explain. \nA. Mudaliar committee, B. Srivastava committee, C. Kaar Singh committee, D. Mukherjee committee', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Kaar Singh committee', 'role': 'assistant'}]