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': 'Renal scan should be done in which position: \nSelect and explain. \nA. Supine, B. Prone, C. Sitting, D. Left lateral', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. Prone', 'role': 'assistant'}]