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': 'FALSE for delusions. September 2003 \nSelect and explain. \nA. Held with absolute conviction, B. Usually false, C. Not amenable to reasoning, D. Shared by those of a common social background', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. D i.e. Shared by those of a common social background', 'role': 'assistant'}]