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': 'Hallucination is a disorder of - \nSelect and explain. \nA. Thought, B. Perception, C. Memory, D. Intelligence', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Altered perception :- Sensory distortion (micropsia, hyperacusis), Illusion.\nFalse perception :- Hallucination.', 'role': 'assistant'}]