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': 'Repetition of movements, act and words, phrases is: \nSelect and explain. \nA. Fusion, B. Mannerism, C. Perseveration, D. Stereo-typing', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Perseveration', 'role': 'assistant'}]