This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Clinical Presentation and Physiology, Subject name: Surgery
[{'content': 'All are risk factors for Ca breast EXCEPT - \nSelect and explain. \nA. BRCA 2 gene positive, B. Personal h/o breast Ca, C. Fibroadenosis, D. Multiparity', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Multiparity o Has been explained in previous sessions", 'role': 'assistant'}]