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': 'Spinomuscular atrophy is seen in lesion of: \nSelect and explain. \nA. Anterior horn, B. Peripheral nerve, C. Neuromuscular junction, D. Any of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer is A (Anterior horn cells): Spinomuscular Atrophy is a form of motor neuron disease that affects the lower motor neuron (Anterior horn cells) only. The site of LMN lesion in LMN type motor neuron disease is the anterior horn cell.', 'role': 'assistant'}]