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': 'Per capita space for students is a class room should not be less than sq. feet - \nSelect and explain. \nA. 5, B. 10, C. 20, D. 50', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., 10 Per capita space for students in a classroom should not be less than 10 sq. ft.", 'role': 'assistant'}]