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
Delirium tremens is characteristically seen in 
Select and explain. 
A. Chronic alcoholism, B. B2 deficiency, C. B12 deficiency, D. Niacin deficiency
A: Chronic alcoholism
Answer: A: Chronic alcoholism 
Explanation: Chronic alcoholism