This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunomodulators, Subject name: Pharmacology
Nevirapine is 
Select and explain. 
A. Nonnucleoside reverse transcriptase inhibitor (NNI), B. Nucleoside reverse transcriptase inhibitor (NIs), C. Protease inhibitor (PI), D. Fusion inhibitor
A: Nonnucleoside reverse transcriptase inhibitor (NNI)
Answer: A: Nonnucleoside reverse transcriptase inhibitor (NNI) 
Explanation: NIs are - Zidovudine, Lamivudine, Stavudine, Didanosine, Zalcitabine Emtricitabine, Abacavir, Tenofovir PIs are - Saquinavir, Indinavir, Ritonavir, Nelfinavir, Amprenavir, Lopinavir and Amprenavir Fusion inhibitor - Enfuviide Ref: HL Sharma 3rd edition anti retroviral drugs.