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
[{'content': 'Manifestation of uretero vaginal fistula is : \nSelect and explain. \nA. Overflow incontinence, B. Hydronephrosis, C. Continuous incontinence, D. Stress incontinence', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Continuous incontinence', 'role': 'assistant'}]