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: Pathology
[{'content': 'Vinyl chloride has been implicated in - \nSelect and explain. \nA. Angiosarcoma of liver, B. Angiofibroma of nose, C. Hepatomas, D. Bladder cancer', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]