This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Haematology, Subject name: Medicine
[{'content': 'Treatment of choice for Hairy cell leukaemia ? \nSelect and explain. \nA. IFNX, B. Splenectomy, C. Cladribine, D. None', 'role': 'user'}, {'content': "Answer: C \nExplanation: Cladribine or 2-chlorodeoxyadenosine is a purine analogue that targets lymphocytes & selectively supress immune system.It is used to treat hairy cell leukaemia .Reference :Davidson's principles & practice of medicine 22nd edition pg no 1041.", 'role': 'assistant'}]