This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous system, Subject name: Physiology
[{'content': 'Inability to perform rapid alternating repeated movements is \nSelect and explain. \nA. Past pointing, B. Dysdiadochokinesia, C. Dysmetria, D. Dykinesia', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Inability to perform rapid alternating repeated movements is dysdiadochokinesia Ref: Ganong 25th ed/page 251', 'role': 'assistant'}]