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
[{'content': 'The sensation of creping bugs over the body is a feature of poisoning: \nSelect and explain. \nA. Cocaine, B. Diazepam, C. Barbiturates, D. Brown sugar', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Cocaine', 'role': 'assistant'}]