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': 'Infliximab ? \nSelect and explain. \nA. CD 20 antagonist, B. IL6 antagonist, C. Chimeric antibody against TNF alpha, D. Chimeric antibody against Her2-neu', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Chimeric antibody against TNF alpha", 'role': 'assistant'}]