This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Social science, Mental health & Genetics, Subject name: Social & Preventive Medicine
[{'content': 'true statement is \nSelect and explain. \nA. A man can live without society, B. A crowd can be a society and a society cannot be a crowd, C. Society constrains individual effos, D. Modern society do not follow customs', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ref: 25th Ed Park's Textbook of Preventive and Social Medicine", 'role': 'assistant'}]