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
Preganglionic parasympathetic nerve fiber which supply pelvic viscera is/are; 
Select and explain. 
A. Ventral rami of S2,3,4, B. Hypogastric plexus, C. Pudendal nerve, D. All
A: Ventral rami of S2,3,4
Answer: A: Ventral rami of S2,3,4 
Explanation: A. i.e. Ventral rami of Sz, S3 and S4