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': 'Which is the most common type of persistent delusional disorder ? \nSelect and explain. \nA. Delusion of persecution, B. Somatic delusion, C. Delusion of jealousy, D. Delusion of grandeur', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. A. Delusion of persecution Delusion of persecution is the most common type of persistent delusional disorder.', 'role': 'assistant'}]