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
Which structure is related to lateral wall of vagina and uterus: 
Select and explain. 
A. Inferior vesical altery, B. Ureter, C. Middle rectal aery, D. Urethra
B: Ureter
Answer: B: Ureter 
Explanation: Ureter