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': 'Retinopathy of Prematurity (ROP) screening is done in the following babies \nSelect and explain. \nA. Preterm < 34 weeks of gestation, B. Preterm of 33 weeks of gestation who required mechanical ventilation, C. Babies with birth weight < 1.8 kg, D. Babies with birth weight < 2 kg', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Retinopathy of Prematurity (ROP) Screening is done in\n\nPreterm babies < 32 weeks of gestation\nBabies with birth weight < 1.5 kg\nPreterm babies of\xa0 32 - 34 weeks of gestation\n\tBabies with birth weight 1.5 - 2 kg\n\nPreterm babies of 32-34 weeks and babies with birth weight 1.5-2kg should have had bad neonatal course like:\na) Ventilatory support\nb) O2 supply for > 24 hours\nc) Ionotrope support for condition like shock\nd) Blood transfusion\ne) Culture positive sepris.', 'role': 'assistant'}]