question: Q:A 46-year-old man with HIV infection comes to the physician because of a 1-week history of severe retrosternal pain while swallowing. He has not been compliant with his antiretroviral drug regimen. His CD4+ T-lymphocyte count is 98/mm3 (N ≥ 500). Endoscopy shows white plaques in the esophagus. The most appropriate immediate treatment is a drug that inhibits which of the following enzymes?? 
  {'A': 'DNA polymerase', 'B': 'Hydrogen-potassium ATPase', 'C': 'Phospholipase A2', 'D': 'Cytochrome p450 enzymes', 'E': 'Squalene epoxidase'},