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: Medicine
[{'content': 'Transaerial chemoembolization (TACE) is used in the treatment of unresectable hepatocellular carcinoma without poal vein thrombosis. The drug commonly used for TACE is: \nSelect and explain. \nA. Doxorubicin, B. Sorafenib, C. Tamoxifen, D. Carboplatin', 'role': 'user'}, {'content': 'Answer: A \nExplanation: There are different treatment modalities for HCC. Curative treatments are resection, liver transplantation, Radiofrequency ablation (RFA), Percutaneous ethanol injection etc. Palliative treatments are TACE, Sorafenib etc. Ref: Harrisons Principles of Internal Medicine, 18th Edition, Cha in Page 781.', 'role': 'assistant'}]