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': 'Most common presenting symptom of benign breast disease \nSelect and explain. \nA. Pain, B. Increase in size, C. Lump, D. Discharge', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans) a (Pain) Ref: Ref: Bailer & Love's short practice of surgery 25th editionBenign breast disease(BBD) is the most common cause of breast prob-lems. 30% of the women suffer fromBBD. Most common symptoms include pain & lumpiness. The symptoms of ANDI (Abnormalities of normal development & involution) often include lumpiness (seldom a discrete lump) and/or breast pain.", 'role': 'assistant'}]