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': 'Hallpike test is done for: \nSelect and explain. \nA. Vestibular function, B. Tinnitus, C. Veigo, D. Facial weakness', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The Dix-Hallpike test -- or Nylen-Barany test -- is a diagnostic maneuver used to identify benign paroxysmal positional veigo (BPPV).', 'role': 'assistant'}]