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: Surgery
[{'content': 'A mobile, variegated large lump in the breast of a 20-year old female is most likely to be due to- \nSelect and explain. \nA. Medullary carcinoma, B. Inflammatory carcinoma, C. Cystosacoma phylloides, D. Lobular carcinoma', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e. Cystosarcoma phylloides", 'role': 'assistant'}]