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': 'Delusion of persecution and formication occur together in \nSelect and explain. \nA. LSD, B. Amphetamine, C. Cocaine, D. Canabis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Cocaine', 'role': 'assistant'}]