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
A person feels that small insects are creeping on the skin giving rise to itching sensation; the condition is seen in: Maharashtra 09; AIIMS 09, 11 
Select and explain. 
A. Cocaine poisoning, B. OPC posioning, C. Morphine poisoning, D. Alcohol withdrawal
A: Cocaine poisoning
Answer: A: Cocaine poisoning 
Explanation: Ans. Cocaine poisoning