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: Anatomy
Pudendal nerve supplying motor part to external sphincter is derived from - 
Select and explain. 
A. L5-S1 roots, B. S1-S2 .roots, C. L2-L3 roots, D. S2-S3 roots
D: S2-S3 roots
Answer: D: S2-S3 roots 
Explanation: Ventral division of sacral plexus gives rise to pudendal nerve. So the root value is S2-4