This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Substance Related and Addictive Disorders, Subject name: Psychiatry
Which of the following is characteristic of alcohol withdrawal? 
Select and explain. 
A. Hallucination, B. Illusion, C. Delusion, D. Drowsiness
A: Hallucination
Answer: A: Hallucination 
Explanation: Alcoholic hallucinations(auditory) is a characteristics withdrawal symptom of alcohol. Delusion of infidelity (morbid jealousy) is also seen in chronic alcoholism but it is not related to withdrawal state.