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
Nerve fibres carrying fast pain is 
Select and explain. 
A. Aα fibres, B. Aδ fibres, C. B fibres, D. C fibres
B: Aδ fibres
Answer: B: Aδ fibres 
Explanation: Fast pain is carried by Aδ fibres
Slow pain is carried by C fibres