This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: FMGE 2018, Subject name: Surgery
[{'content': 'Surgery is indicated in Ulcerative Colitis in all except? \nSelect and explain. \nA. Toxic megacolon, B. Colonic polyp, C. Colonic obstruction, D. Refractory fistula', 'role': 'user'}, {'content': 'Answer: B \nExplanation: -Indication for surgery in a patient of UC are: Intractability - refractory to medical management Dysplasia Carcinoma Massive colonic bleeding Toxic megacolon', 'role': 'assistant'}]