This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General obstetrics, Subject name: Anatomy
The nerve roots blocked in pudendal nerve block is : 
Select and explain. 
A. L1,2,3, B. L2,3, C. S2,3,4, D. S4
C: S2,3,4
Answer: C: S2,3,4 
Explanation: Pudendal nerve arises from S2,3,4 roots Pudendal block will block all the roots. Ref: Datta Obs 9e pg 480.