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
Type of nerve fiber most susceptible to local anaesthetic 
Select and explain. 
A. A, B. B, C. C, D. All are equally susceptible
C: C
Answer: C: C 
Explanation: Type C fibres are most susceptible to LA, type A are the least susceptible. While type A fibres are most susceptible to pressure. Ref: Ganongs review of physiology; 25th edition; pg: 95