This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Inflammatory bowel disease, Subject name: Surgery
[{'content': 'Most common complication of UC with IPAA: \nSelect and explain. \nA. Small bowel obstruction, B. Pouchitis, C. Pelvic sepsis, D. Leak', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Complications Pouchitis( 7-33%) Small bowel obstruction( upto to 27%) Pelvic sepsis Anastomotic & pouch suture line leaks Pouch- vaginal fistula', 'role': 'assistant'}]