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': 'COWS is related to ? \nSelect and explain. \nA. Romberg test, B. Caloric test, C. Fistula test, D. Hallpike positional test', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is'b'i.e., Caloric testln bithermal caloric< test rCold water provokes nystagmus towards the opposite ear, while wann wotet grovolecs nystagmus towards sarne ear (COWS:- Cold - opposite, Warm - same).", 'role': 'assistant'}]