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: Unknown
[{'content': 'BMI level for men which is considered as lethal is: \nSelect and explain. \nA. 11, B. 13, C. 12, D. 15', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ref. Foundations of Community medicine. Page. 293\n\xa0\nBody mass index (BMI) is an estimate of total body fat mass\n\nSimply an index of weight for height.\n\n● Formula: Weight in kilograms divided by the square of height in meters.\n● Uses:\n\nBody mass index = Weight (kg)/(Height)2 (m)\nUsed to classify and define underweight, overweight & obesity in adults.\nBMI value considered lethal for Men is 13 and for female is 11', 'role': 'assistant'}]