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
The aery to the ductus dererens is a branch of: 
Select and explain. 
A. Inferior epigastric aery, B. Superior epigastric aery, C. Superior vesical aery, D. Cremasteric aery
C: Superior vesical aery
Answer: C: Superior vesical aery 
Explanation: The ductus deferens recieves its blood supply from the aery to ductus deferens which usually arises from the superior vesical aery. Occasionally it may arise from the inferior vesical aery. Ref: Elements of Anatomy : In 3 volumes, Volume 3 By Jones Quain, Page 383; Elements of anatomy By Jones Quain, Page 573; Color Atlas of Human Anatomy: Internal Organs, Volume 2 By Helga Fritsch, Wolfgang Kuhnel, Page 256