This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Breast Cancer - Treatments, Subject name: Surgery
[{'content': 'Which of the following drugs is used in management of breast cancer if it is estrogen receptor positive - \nSelect and explain. \nA. Bevacizumab, B. Tamoxifen, C. Cyclophosphamide, D. Adalimumab', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Tamoxifen Drugs commonly used in hormone (estrogen) receptor positive breast cancero SERMs Tamoxifen, tromifeneo SERDsFulvestranto Aromatase inhibitors Letrozole, anastrazole, exemestone.", 'role': 'assistant'}]