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: Radiology
[{'content': '"Claw Sign" is seen in: \nSelect and explain. \nA. Intussusception, B. Volvulus, C. Pyloric stenosis, D. Peptic ulcer', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Intussusception Claw sign/ filling defect seen at the mid transverse colon representing the intussceptum with progressive reduction as we go through the study.', 'role': 'assistant'}]