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 60 year old male suffering from auditory hallucination says that people staying upwards are talking about him and conspiring against him. He dropped a police compliant against them but the allegations were proved to be wrong. The diagnosis is: \nSelect and explain. \nA. Depression, B. Dementia, C. Delusional disorder, D. Schizophrenia', 'role': 'user'}, {'content': 'Answer: D \nExplanation: D i.e. Schizophrenia', 'role': 'assistant'}]