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: Forensic Medicine
All are associated with Wernicke's encephalopathy, except: FMGE 10; NEET 13; NIMHANS 13; UPSC 14 
Select and explain. 
A. Cog wheel rigidity, B. Alteration in mental function, C. Vlth nerve palsy, D. Ataxia
A: Cog wheel rigidity
Answer: A: Cog wheel rigidity 
Explanation: Ans. Cog wheel rigidity