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': 'Perseveration is - \nSelect and explain. \nA. Persistent and inappropriate repetition of the same thoughts, B. When a patient feels very distressed about it, C. Characteristic of schizophrenia, D. Characteristic of obsessive compulsive disorder (OCD)', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Perseveration is continuing with a verbal response which was initially appropriate, However, thereafter there is persistent and inappropriate repetition of the same verbal response.', 'role': 'assistant'}]