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
Most commonly used immunosuppressants are : 
Select and explain. 
A. Glucocorticoids, B. Cyclosporine, C. Tacrolimus, D. Methotrexate
A: Glucocorticoids
Answer: A: Glucocorticoids 
Explanation: None