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': 'Most important prognostic factor for carcinoma breast is \nSelect and explain. \nA. Skin involvement, B. Tumor size, C. Chest wall involvement, D. Lymph node involvement', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Spread to axillary nodes is the most important prognostic indicator.\xa0\nOther prognostic factors are\nAge: Younger the age worse the prognosis.\xa0\nSex: Carcinoma male breast has got worse prognosis\xa0compared to the female breast. Because of early spread in\xa0carcinoma male breast.\nStage I and II have got a better prognosis.\xa0\nAtrophic scirrhous has got the best prognosis.\nMedullary carcinoma has got better prognosis than scirrhous carcinoma because of lymphocytic infiltration.\nInvasive carcinoma has got a worse prognosis.\xa0\nInflammatory carcinoma breast has the worst prognosis.', 'role': 'assistant'}]