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': 'TC-99 RBC are used for \nSelect and explain. \nA. Myocardial function, B. Spleen diseases, C. Liver and biliary function, D. Lung Ventilation', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Tc-99 RBC - Spleen diseases\nXenon gas - Lung Ventillation\nTc - 9 glycoheptone - Liver and biliary function', 'role': 'assistant'}]