An Antiretroviral Regimen Usually Consists of Two Reverse Transcriptase Inhibitors

An antiretroviral regimen usually consists of two reverse transcriptase inhibitors and a(n)

A) integrase inhibitor.
B) reverse transcriptase inhibitor.
C) protease inhibitor.
D) protease inhibitor, integrase inhibitor, or reverse transcriptase inhibitor.
E) protease inhibitor or integrase inhibitor.