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
The withdrawal from all of the following may produce suicidal tendencies except - 
Select and explain. 
A. Cocaine, B. Amphetamine, C. Alcohol, D. Cannabis
D: Cannabis
Answer: D: Cannabis 
Explanation: Cannabis does not produce clinically significant withdrawal symptoms.