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: Medicine
[{'content': 'Parkinsonism is characterised by all of the following characteristic features except - \nSelect and explain. \nA. Rigidity, B. Akinesia, C. Tremors at rest, D. Past pointing', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]