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': 'Malti, a 45 years female pt. with a family h/o breast carcinoma, showed diffuse microcalcification on mammography. Indraductal carcinoma in situ was seen on biopsy. Most appropriate management is - \nSelect and explain. \nA. Quadrantectomy, B. Radical mastectomy, C. Simple mastectomy, D. Chemotherapy', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]