This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
Her-2 neu receptor is used in breast carcinoma for 
Select and explain. 
A. Screening of the breast carcinoma, B. Diagnosis of cancer, C. Predicting response to treatment, D. Detect recurrence
C: Predicting response to treatment
Answer: C: Predicting response to treatment 
Explanation: .