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
Ramu aged 45 years, a chronic alcoholic presents with complaints of confusion , ataxia , opthalmoplegia and peripheral neuropathy - diagnosis is : 
Select and explain. 
A. Korsakoff's psychosis, B. Delerium tremens, C. Alcoholic hallucination, D. Wernicke's encephalopathy
D: Wernicke's encephalopathy
Answer: D: Wernicke's encephalopathy 
Explanation: D i.e. Wernicke's encephalopathy