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: Pediatrics
[{'content': 'Extremely low birth weight baby – \nSelect and explain. \nA. < 2.5 kg, B. < 2 kg, C. < 1.5 kg, D. < 1 kg', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Low birth weight newborn\n\nAny neonate weighing less than 2500 gm at birth irrespective of the gestational age.\n\nVery low birth weight newborn\n\nAny neonate weighing less than 1500 gm at birth irrespective of the gestational age.\n\nExtremely low birth weight newborn\n\nAny neonate weighing less than 1000 gm at birth irrespective of the gestational age.', 'role': 'assistant'}]