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: Surgery
[{'content': 'Etiology of bloody discharge from nipple \nSelect and explain. \nA. Duct papiloma, B. Breast abcess, C. Fibroadenoma, D. Cyst', 'role': 'user'}, {'content': "Answer: A \nExplanation: blood stained nipple discharge is obtained in case of duct ectasia,duct papilloma,or carcinomaother nipple discharges of pathological impoance are clear serous discharge and black,greenish discharge. Bailey and Love'sSho practice of surgery.Edition 23.Pg no:753", 'role': 'assistant'}]