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 psychotic disorder most commonly pertains to which of the following symptoms ? \nSelect and explain. \nA. Weeping or laughing, B. Agitation or retardation, C. Obsessions or compulsions, D. Delusions or hallucinations', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]