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': 'The most frequently used procedure for diagnosing palpable breast masses is \nSelect and explain. \nA. Core-cutting needle biopsly, B. Fine needle aspiration, C. Excisional biopsy, D. Incisional biopsy', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Fine needle aspiration cytology FNAC, is very useful in breast carcinoma advantages; least painful, can be done in OP basis, reliable and cheaper malignant deposit will not occur along the track of FNAC ref ;(page no;542) 5th edition of SRB&;S Manual of SURGERY', 'role': 'assistant'}]