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: Medicine
Which of the following is not a nucleoside reverse transcriptase inhibitor - 
Select and explain. 
A. Zalcitabine, B. Lamivudine, C. Nevirapine, D. Didanosine
C: Nevirapine
Answer: C: Nevirapine 
Explanation: None