This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Alcohol-Related Disorders, Subject name: Psychiatry
Delirium tremens is caused by? 
Select and explain. 
A. Chronic alcoholism, B. Alcohol withdrawal, C. Cocaine abuse, D. Cocaine withdrawal
B: Alcohol withdrawal
Answer: B: Alcohol withdrawal 
Explanation: ANSWER: (B) Alcohol withdrawalREF: Kaplan & Sadocks Synopsis of Psychiatry 9th edition page 396-413ALCOHOL INDUCED CONDITIONSAlcohol withdrawal syndromeChronic use syndromes* Hangover (most common)* Alcoholic Hallucinosis* Alcoholic seizures (Rum fits)* Delirium Tremens* Wernicke's Encephalopathy* Korsakoff's Psychosis* Marchiafava Bignami disease