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
Spinomuscular atrophy is seen in lesion of- 
Select and explain. 
A. Anterior horn, B. Peripheral nerve, C. Neuromuscular junction, D. Any of the above
A: Anterior horn
Answer: A: Anterior horn 
Explanation: None