This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urinary Fistulas, Subject name: Gynaecology & Obstetrics
[{'content': 'All of the following are done in case of VVF except \nSelect and explain. \nA. Methylene blue 3 swab test, B. Urine culture, C. Cystoscopy, D. MRI', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. is d. i.e. MRIRef: Shaw 16th/ed, p221 & 222The Investigation done in VVF are:* Urine culture* USG* IVP* Cystoscopy* Methylene blue 3 swab test', 'role': 'assistant'}]