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': 'Mammographic abnormality seen in CA breast is : \nSelect and explain. \nA. Change in density, B. Clusters of Micro calcification, C. Change in architecture, D. All', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Mammographic features of breast carcinoma :\n\nIrregular spiculated margin.\nArchitectural distortion.\nHigh\xa0density lesion.\nMicrocalcification.', 'role': 'assistant'}]