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': "When the rectum is inflated with air through a rectal tube, pain and tenderness occur in the right iliac fossa in case of appenidicitis. This is known as- \nSelect and explain. \nA. Aaron's sign, B. Battle's sign, C. Bastedo's sign, D. Mc Burney's sign", 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]