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 of death in Carcinoma penis is usually - \nSelect and explain. \nA. Metastasis to lung, B. Metastasis to liver, C. Erosion of Femoral blood vessels, D. Urinary obstruction', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Inguinal lymph nodes erode the skin of the groin and the death of the patient may be due to involvement of the femoral or external iliac artery with torrential hemorrhage.', 'role': 'assistant'}]