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, ophthalmoplegia and peripheral neuropathy - 
Select and explain. 
A. Korsakoff's psychosis, B. Delirium tremens, C. Alcoholic hallucination, D. Wernicke's encephalopathy
D: Wernicke's encephalopathy
Answer: D: Wernicke's encephalopathy 
Explanation: Wernicke's encephalopathy is characterized by classical triad of global confusion, ophthalmoplegia and ataxia.