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': 'Porencephaly seen in – \nSelect and explain. \nA. Trisomy 13, B. Fetal alcohol syndrome, C. Down syndrome, D. Dandy Walker syndrome', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Porencephaly is the presence of cyst and cavities in the brain.\nIt is due to infarction.\nIn Dandy - walker syndrome also cyst occurs in brain due to expansion of 4th ventricle.', 'role': 'assistant'}]