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': 'Not a Urban socio Economic status scale \nSelect and explain. \nA. Modified Kuppuswamy scale, B. Udai Pareek scale, C. Kulshreshtha scale, D. Jalota scale', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]