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': 'In morbid obesity, BMI is ? \nSelect and explain. \nA. >25, B. >30, C. >35, D. >40', 'role': 'user'}, {'content': "Answer: D \nExplanation: park's text book of preventive and social medicine 23rd edition. deg>40-co morbidity very severe .it is class3 obesity .", 'role': 'assistant'}]