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: ENT
[{'content': 'Tober Ayer test is positive in: \nSelect and explain. \nA. Lateral sinus thrombosis, B. Petrositis, C. Cerebral abscess, D. Subarachnoid hemorrhage', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The Tobey-Ayer test is used for lateral sinus thrombosis by monitoring cerebrospinal fluid pressure during a lumbar puncture.', 'role': 'assistant'}]