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': 'Semicircular canal involved in Positive Romberg test with eyes closed detects defect in - \nSelect and explain. \nA. Proprioceptive pathway, B. Cerebellum, C. Spinothalmic tract, D. Peripheral nerve', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]