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': 'All of the following drugs are used as immunosuppressants EXCEPT : \nSelect and explain. \nA. Glucocorticoids, B. Cyclosporine, C. Cephalosporin, D. Azathioprine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Cephalosporins are β-lactam antibiotics whereas other drugs are lmmunosuppressants.', 'role': 'assistant'}]