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
In Breast cancer following are expressed: 
Select and explain. 
A. HER2/neu, B. P53, C. B RCA1, D. All
D: All
Answer: D: All 
Explanation: Ans. is 'a', 'b' & 'c' i.e. HER2/neu, P53 & BRCA1