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: Pharmacology
[{'content': 'Cerebellar ataxia is caused by which anticancer drug \nSelect and explain. \nA. Cyclophosphamide, B. Chloramphenicol, C. Cytarabine, D. Vinblastine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Cytarabine is a pyrimidine analogue which can cause cerebellar\xa0ataxia.', 'role': 'assistant'}]