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': 'Most common type of delusion is : \nSelect and explain. \nA. Delusion of reference, B. Paranoid delusion, C. Delusion of guilt, D. Delusion of persecution', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Delusion of persecution : Patient believes that someone is going to harm him, his family or his property.', 'role': 'assistant'}]