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 25 year old university student had a fight with the neighbouring boy. On the next day, while out, he started feeling that two men in police uniform were observing this movement. When he reached home in the evening he was frightened. He expressed that police was after him and would arrest him. His symptoms represent - \nSelect and explain. \nA. Delusion of persecution, B. Ideas of reference, C. Passivity, D. Thought insertion', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Similar to previous question, patient experiences that he is being persecuted against (police is after him and would arrest him, he fights with neighbour).', 'role': 'assistant'}]