This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pelvis and Perineum 2, Subject name: Anatomy
A 59-year-old woman comes to a local hospital for uterine cancer surgery. As the uterine aery passes from the internal iliac aery to the uterus, it crosses superior to which of the following structures that is sometimes mistakenly ligated during such surgery?, 
Select and explain. 
A. Ovarian aery, B. Ovarian ligament, C. Uterine tube, D. Ureter
D: Ureter
Answer: D: Ureter 
Explanation: The ureter runs under the uterine aery near the cervix; thus, the ureter is sometimes mistakenly ligated during pelvic surgery. The other structures mentioned are not closely related to the uterine aery near the uterine cervix.