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': 'Time sector imaging is preferred in infants because: \nSelect and explain. \nA. Child will be more co-operative, B. Close to fontanelles, C. Less expensive, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. All of the above', 'role': 'assistant'}]