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': 'Conduction velocity of nerve is reduced in all of the following conditions, except - \nSelect and explain. \nA. Acute Motor Axonal Neuropathy (AMAN), B. Acute Inflammatroy Demyelinating Neuropathy (AIDP), C. Hereditary Sencory Motor Neuropathy (HSM), D. Multifocal Motor Neuropathy', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]