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': 'The treatment options for patients with RRMS (relapsing-remitting multiple sclerosis) are all except \nSelect and explain. \nA. IFN - 1 b, B. IFN - 1 a, C. Glatiramer acetate, D. TNF - a', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., TNF - a", 'role': 'assistant'}]