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': 'The primary delusion are disorder of \nSelect and explain. \nA. Thought, B. Perception, C. Loosening of association, D. Memory', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Thought', 'role': 'assistant'}]