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 grains of sand are lying under the skin or some small insects are creeping on the skin giving rise to itching sensation the condition is seen in: 
Select and explain. 
A. Cocaine poisoning, B. Orgfanophosphorus poisoning, C. Morphine poisoning, D. Alcohol withdrawal
A: Cocaine poisoning
Answer: A: Cocaine poisoning 
Explanation: A i.e. Cocaine poisoning