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': 'Fully humanized antibodies used in treatment of rheumatoid arthritis ? \nSelect and explain. \nA. Anakira, B. Adalimumab, C. Infliximab, D. Leflunomide', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]