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: Medicine
[{'content': 'All the following are features of pseudotumor cerebri except - \nSelect and explain. \nA. Normal-sized ventricles on CT scan, B. Increased protein in CSF, C. Papilledema, D. Absence of focal neurological deficit', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]