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': 'Breast cancer more commonly seen in -a) Increased risk in relativesb) Early marriage < 20 yrs.c) Nulliparad) High fat diete) Who avoided breast feeding \nSelect and explain. \nA. bce, B. acde, C. abcd, D. abde', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]