This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Breast, Subject name: Surgery
[{'content': 'Mammography radiation used is \nSelect and explain. \nA. Conventional X ray, B. Brems strahlung X ray, C. Low amperage X ray, D. Stereo Ray', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) Bremsstrahlung Xray(Ref Internet Source)* Mammography is a Low voltage and High Amperage X ray* Mammography is a type of X ray known as Bremsstrahlung/Braking X-ray generation (It is not a classical X ray)', 'role': 'assistant'}]