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: Pharmacology
Drug used to prevent alcohol withdrawal in deaddiction is ? 
Select and explain. 
A. Diazepam, B. Clonidine, C. Propranolol, D. Methadone
A: Diazepam
Answer: A: Diazepam 
Explanation: None