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': 'Protease inhibitors are : a) Saquinavir b) Nevirapine c) Nelfinavir d) Abacavir e) Efavirenz \nSelect and explain. \nA. ac, B. be, C. bc, D. ad', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]