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': 'Kupuswamy index includes following Except \nSelect and explain. \nA. Income, B. Housing, C. Education, D. Occupation', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Kuppuswamy in India prepared a scale based on education, occupation and income which are three major variables contributing to socio-economic status in urban areasPark 23e pg: 691', 'role': 'assistant'}]