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
Fast fatigue fibres are recruited during walking: 
Select and explain. 
A. In the beginning, B. In the end, C. Throughout the walking process, D. When small neurons are excited
B: In the end
Answer: B: In the end 
Explanation: Ans. b. In the end