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: Radiology
[{'content': 'Characteristic finding in CT scan of patient with tubercular meningitis is: \nSelect and explain. \nA. Exudates seen in basal cistern, B. Hydrocephalus is not seen, C. Ventriculitis, D. Calcification in cerebellum', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. Exudates seen in basal cistern', 'role': 'assistant'}]