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: Pathology
[{'content': "Venous malformations involving the leptomeninges of the cerebral cortex is a salient feature of \nSelect and explain. \nA. Rendu-Osier-Weber disease, B. Maffuci's syndrome, C. Angioosteohypertrophy syndrome, D. Sturge weber syndrome", 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]