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': 'Drugs inhibiting the formation of IL-2 are :  a) Cycloserine b) Cyclosporine c) OKT–3 d) Tacrolimus \nSelect and explain. \nA. bd, B. a, C. c, D. ad', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]