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: Psychiatry
An alcoholic person comes to your office, he can't tell his name, there is gross incordination in walking and his eye is deviated to one side. What is your diagnosis? 
Select and explain. 
A. Wernicke's encephalopathy, B. Korsakoff's psychosis, C. Alcoholic hallucination, D. Delirium tremens
A: Wernicke's encephalopathy
Answer: A: Wernicke's encephalopathy 
Explanation: Incordination in walking (ataxia), and deviation of the eye to one side (ophthalmoplegia due to 6th nerve palsy) and inability to tell his name (suggests of confusion) in an alcoholic suggest the diagnosis of Wernicke's encephalopathy.