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': 'Not given intrathecally- \nSelect and explain. \nA. Methotrexate, B. Taxol, C. 5 FU, D. Cyclophosphamide', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]