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
[{'content': 'A patient sees a rope and fears like a snake. It is called - \nSelect and explain. \nA. Illusion, B. Hallucination, C. Delusion, D. Depersonalization', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The real object, i.e. rope is misinterpreted as snake → illusion.', 'role': 'assistant'}]