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': 'Le dance sign is seen in \nSelect and explain. \nA. Appendicitis, B. Intussusception, C. Meconium ileus, D. Large bowel obstruction', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Le dance sign is empty right iliac fossa, seen in Intussusception.', 'role': 'assistant'}]