This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NCDs: CHD, HTN, DM, RF, Cancers, Obesity, Blindness, Subject name: Social & Preventive Medicine
[{'content': 'Morbid obesity is defined if BMI is greater than: \nSelect and explain. \nA. 18.5, B. 25, C. 30, D. 40', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Most prevalent form of malnutrition: obesity BMI >40: Grade III obesity BMI > 50: super obesity', 'role': 'assistant'}]