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': 'Nucleoside reverse transcriptase inhibitors are : a) Zalcitabine b) Delavirdine c) Nevirapine d) Stavudine e) Ritonavir \nSelect and explain. \nA. cd, B. ad, C. bc, D. be', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]