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': 'Altered (bizarre) perception/interpretation of real objects is most appropriately known as: \nSelect and explain. \nA. Illusion, B. Delusion, C. Hallucination, D. Delirium', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Illusion', 'role': 'assistant'}]