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: Anatomy
[{'content': 'BRCA-1 postive women have ____% increased risk of breast carcinoma \nSelect and explain. \nA. 10, B. 20, C. 40, D. 60', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ref: schwaz's principle of surgery 10th edition Pg no :514-515 Sabiston 20th edition pgno: 832", 'role': 'assistant'}]