This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition, Subject name: Pediatrics
[{'content': 'According to Gomez classification of undernutrition, severe malnutrition has a median weight for age of _______________ \nSelect and explain. \nA. < 90%, B. < 75%, C. < 60%, D. < 50%', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Gomez classification of Undernutrition Grading Median weight-for-age I 90-75% II 75-60% III < 60% Reference: Nelson; Page no: 298; Table: 46-2', 'role': 'assistant'}]