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: Gynaecology & Obstetrics
All except one explains complicated vesicovaginal fistula 
Select and explain. 
A. Shortened vaginal length, B. Prior radiation therapy, C. Located near the cuff, D. Size > 3 cm
C: Located near the cuff
Answer: C: Located near the cuff 
Explanation: Complicated vesicovaginal fistula is located distant from cuff.