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
COWS is related to ? 
Select and explain. 
A. Romberg test, B. Caloric test, C. Fistula test, D. Hallpike positional test
B: Caloric test
Answer: B: Caloric test 
Explanation: 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).