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: Anatomy
LMN involves: 
Select and explain. 
A. Peripheral nerves, B. Anterior horn cell, C. Anterior nerve root, D. All
D: All
Answer: D: All 
Explanation: A i.e. Peripheral nerve; B i.e. Anterior horn cell; C i.e. Anterior nerve root