This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Basics of Psychiatry, Subject name: Psychiatry
[{'content': 'Preception of object without external stimulus called ? \nSelect and explain. \nA. Delusion, B. Superstition, C. Illusion, D. Hallucination', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Hallucination -False perception which occurs in the absence of any real object / stimulus. Hallucination are as vivid as a real preception . vivid - > detailed /clarity Superstition - a false belief which is unexplained by reality and is shared by a number of people. Delusions - disorder of content of thoughts which is firm ,false , unshakable(despite continuous evidence against it) and is not explained by socio cultural background of patient.', 'role': 'assistant'}]