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: Surgery
[{'content': 'Commonest cause of ureteric injury during surgical operation is - \nSelect and explain. \nA. Abdomino-perineal resection, B. Hysterectomy, C. Prostectomy, D. Colectomy', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]