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: Physiology
Which of the following nerve fibres has the highest conduction velocity? 
Select and explain. 
A. Aα, B. Aβ, C. Aγ, D. B
A: Aα
Answer: A: Aα 
Explanation: Types of mammalian nerve fibers: