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': 'Most frequent cause of neonatal thrombocytopenic purura is - \nSelect and explain. \nA. Infection, B. Drug idiosyncrasy, C. Large haemangiomas, D. Erythroblastosis', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Infection o Amongst the given options, only infection causes neonatal thrombocytopenia.", 'role': 'assistant'}]