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
Symptomatic treatment is only required in withdrawal syndrome caused by: BHU 11 
Select and explain. 
A. Cannabis, B. Morphine, C. Alcohol, D. Cocaine
A: Cannabis
Answer: A: Cannabis 
Explanation: Ans. Cannabis