This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous system, Subject name: Physiology
Slow conduction velocity is seen with which of the following nerve fibers 
Select and explain. 
A. Preganglionic autonomic nerve fibers, B. Postganglionic autonomic nerve fibers, C. Sympathetic nerve fibers, D. Motor nerves
B: Postganglionic autonomic nerve fibers
Answer: B: Postganglionic autonomic nerve fibers 
Explanation: Ref:- Ganong's Review of Medical Physiology 25th ed; pg num:- 94