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': 'Slidding constituent of a large direct hernia is \nSelect and explain. \nA. Bladder, B. Sigmoid colon, C. Caecum, D. Appendix', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Bladder Sigmoid colon and Caecum slide into indirect sac not in direct sac", 'role': 'assistant'}]