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
Pure motor paralysis is seen in : 
Select and explain. 
A. Polio, B. Gullien Barre syndrome, C. Diabetes mellitus, D. Sub-Acute Combined Degeneration
A: Polio
Answer: A: Polio 
Explanation: Answer is A (Polio): Poliomyelitis affects the (interior horn cells and causes a pure motor neuropathy.