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
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 - 
Select and explain. 
A. Quadrantectomy, B. Radical mastectomy, C. Simple mastectomy, D. Chemotherapy
C: Simple mastectomy
Answer: C: Simple mastectomy 
Explanation: None