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': "Bilateral loss of tendon jerk and extensor plantar response is seen in \nSelect and explain. \nA. Amyotrophic lateral sclerosis, B. Freidrich's ataxia, C. Tabes dorsalis, D. Lead poisoning", 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]