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': 'Immunosuppressant drug inhibiting the action of IL–2 without inhibiting its transcription is : \nSelect and explain. \nA. Prednisolone, B. Cyclosporine, C. Tacrolimus, D. Sirolimus', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]