This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology and breast, Subject name: Surgery
[{'content': 'A 55 year old post menopausal woman, on hormone replacement therapy(H), presents with heaviness in both breasts. A screening mammogram reveals a high density speculated mass with cluster of pleomorphic microcalcification and ipsilateral large axillary lymph nodes. The mass described here is most likely \nSelect and explain. \nA. Cystosarcoma phyllodes, B. Lymphoma, C. Fibro adenoma, D. Carcinoma', 'role': 'user'}, {'content': 'Answer: D \nExplanation: .', 'role': 'assistant'}]