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': 'A 45 year old woman presents with a hard and mobile lump in the breast. Next investigation is: \nSelect and explain. \nA. FNAC, B. USG, C. Mammography, D. Excision biopsy', 'role': 'user'}, {'content': "Answer: A \nExplanation: In any patient with a breast lump or other symptoms suggestive of carcinoma, diagnosis should be made by a combination of triple assessment: a. Clinical assessment b. Radiological imaging c. Tissue sampling for either cytological or histological examination Ref: CSDT, 11th Edition, Page 324-25; Bailey and Love's Sho Practice of Surgery, 23rd Edition, Page 760.", 'role': 'assistant'}]