This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Obstetrics and gynaecology, Subject name: Radiology
Point A in radiotherapy for carcinoma cervix corresponds to 
Select and explain. 
A. Lateral pelvic lymph nodes, B. Urinary bladder, C. Rectum, D. Uterine vessel crossing the ureter
D: Uterine vessel crossing the ureter
Answer: D: Uterine vessel crossing the ureter 
Explanation: <img alt="" src=" />