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
After use of some drug, a person develops episodes of rage in which he runs about and indiscriminately injures a person who is encountered in way. He is probably addict of- 
Select and explain. 
A. Alcohol, B. Cannabis, C. Opium, D. Cocaine
B: Cannabis
Answer: B: Cannabis 
Explanation: Episodes of rage in which the person runs about and injures others is suggestive of running amok, which is seen in Cannabis abuse.