This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Psychiatry, Subject name: Medicine
[{'content': 'Delusion is \nSelect and explain. \nA. Perception, B. Thought, C. Insight, D. Depression', 'role': 'user'}, {'content': "Answer: B \nExplanation: (Thought) (60- 61- Neeraj Ahuja 6th)* Delusion is a disorder with disturbed content of thought* Hallucination & Illusion are disorders of perception* Delirium & dementia are disorders of cognition* Insight is disturbed in psychosisDELUSION - False belief based on in correct inference about external reality; not consistent with patient's intelligence and cultural back ground that cannot be corrected by reasoning", 'role': 'assistant'}]