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': 'Ipsilateral supraclavicular lymph nodes are positive in a patient of Ca Breast. Stage is: \nSelect and explain. \nA. II, B. III B, C. III C, D. IV', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]