This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Anatomy
[{'content': 'Sorafinib is most useful in which cancer \nSelect and explain. \nA. RCC, B. Hepatoma, C. Glioblastoma, D. Multiple Myeloma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Targets VEGFR pathways in RCC. Possible activity against BRAF in melanoma & colon cancer.', 'role': 'assistant'}]