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': 'Least common quadrant in cancer breast is \nSelect and explain. \nA. Upper outer, B. Lower outer, C. Sub areolar, D. Lower inner', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Most malignant type of CA breast : Inflammatory breast cancer Best prognosis is seen in : Tubular MC site of CA breast : Upper outer quadrant (left breast >right) Least common site of CA breast lower inner quadrant MC site of metastasis is Bone (osteolytic deposits in lumbar veebrae >Femur >Thoracic veebrae >Rib > Skull Ref: Sabiston 20th edition Pgno :837', 'role': 'assistant'}]