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': "Cause for nipple retraction in breast carcinoma is \nSelect and explain. \nA. Blocking of lymphatics, B. Involvement of the Cooper's ligament, C. Infiltration of ducts, D. Skin infiltration", 'role': 'user'}, {'content': "Answer: C \nExplanation: Infiltration of the Cooper’s ligament will give rise to dimpling of skin.\nBlocking of subcutaneous lymph nodes will give rise to peau d'orange appearance.", 'role': 'assistant'}]