This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Breast, Subject name: Surgery
[{'content': 'Which of the following is seen in carcinoma breast? \nSelect and explain. \nA. Powdery calcification, B. Popcorn calcification, C. Nodular calcification, D. Pleomorphic calcification', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Powdery calcification Fibrocystic disease Popcorn calcification Fibroadenoma Pleiomorphic calcification Ca breast Curvilinear calcification Fat necrosis Microcalcification - < 0.5mm Macrocalcification - > 0.5mm', 'role': 'assistant'}]