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': 'Which of the following is a triple negative breast cancer - \nSelect and explain. \nA. Colloid Cancer, B. Secretory cell cancer, C. Acinic Cell Carcinoma, D. Mucinous Carcinoma', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Answer- B. Secretory cell cancerUpon histologic examination, triple-negative breast tumors mostly fall into the categories of secretory cell carcinoma or adenoid cystic types (both considered less aggressive); medullary cancerc and grade 3 invasive ductal carcinonas with no specific subtype; and highly aggressive metastatic cancer.', 'role': 'assistant'}]