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': 'Which is true about Intusssusception - \nSelect and explain. \nA. Common in neonates, B. Fever always present, C. Not associated with tumors of intestine, D. Usually relieved by barium enema', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]