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 Haemangioma RBC's    – \nSelect and explain. \nA. Biliary tree, B. Renal disease, C. Pulmonary embolism, D. Spleenic disease", 'role': 'user'}, {'content': 'Answer: D \nExplanation: Tc 99 - Labelled RBCs provides information about red cell pooling, so it is used in - HHaemangiomadetection, Gastrointestinal bleeding, Spleenic disease, Cardiac ventriculography.', 'role': 'assistant'}]