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': 'In Breast cancer following are expressed: \nSelect and explain. \nA. HER2/neu, B. P53, C. B RCA1, D. All', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'a', 'b' & 'c' i.e. HER2/neu, P53 & BRCA1", 'role': 'assistant'}]