This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
Sentinel node biopsy for Carcinoma breast is for 
Select and explain. 
A. Early diagnosis of cancer, B. For staging the tumors, C. Frozen section, D. Occult disease detection
B: For staging the tumors
Answer: B: For staging the tumors 
Explanation: Sentinel node biopsy is a surgical procedure used to determine whether cancer has spread beyond a primary tumor into your lymphatic system. It's used most commonly in evaluating breast cancer and melanoma. The sentinel nodes are the first few lymph nodes into which a tumor drains.