This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Non communicable diseases, Subject name: Social & Preventive Medicine
[{'content': 'Corpulence index means - \nSelect and explain. \nA. Measurement of obesity, B. Measurement of copper level in serum, C. Measurement of iron losses in faeces, D. Pressure difference b/w chambers of hea', 'role': 'user'}, {'content': 'Answer: A \nExplanation: It used in calculation of Obesity Ref: Park 25th edition Pgno : 417', 'role': 'assistant'}]