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: 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.