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': "Magnan's symptoms is - \nSelect and explain. \nA. Illusion, B. Delusion, C. Formication, D. Depersonalization", 'role': 'user'}, {'content': "Answer: C \nExplanation: Magnan's symptoms is tactile hallucination (fornication) i.e. feeling of bugs crawling under the skin.", 'role': 'assistant'}]