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
Carcinoma cervix with bilateral hydro ureter due to ureteric obstruction in stage : 
Select and explain. 
A. I, B. II, C. III, D. IV
C: III
Answer: C: III 
Explanation: III