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': 'Most common presenting symptom of fibroadenosis is \nSelect and explain. \nA. Pain, B. Discharge from nipple, C. Non-tender lump in the breast, D. Mass', 'role': 'user'}, {'content': 'Answer: A \nExplanation: .Tamoxifen used in- * Carcinoma breast * Benign diseases of the breast like fibroadenosis * Infeility in males * Desmoid tumour. Differential diagnosis for carcinoma breast * Fibroadenosis * Traumatic fat necrosis * Tuberculosis of breast * Blood good cyst * Filariasis breast * Mastitis etc. usually ibroadenosis presents with pain. ref:SRB&;s manual of surgery,ed 3,pg no 456', 'role': 'assistant'}]