This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Parkinsonism and other movement disorders, Subject name: Medicine
[{'content': 'Flapping tremor occurs due to all except? \nSelect and explain. \nA. C02 narcosis, B. Hepatic encephalopathy, C. Uremic encephalopathy, D. Paralysis Agitans', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Flapping tremor (Asterixis) - CO2 Narcosis - Hepatic encephalopathy - Urinemic encephalopathy Paralysis Agitans - Parkinsonism like manifestation Metabolic encephalopathy -Anomic Aphasia, Asterixis', 'role': 'assistant'}]