Which statement best describes the overall antiviral effectiveness for HIV and COVID in the material?

Which statement best describes the overall antiviral effectiveness for HIV and COVID in the material?

• A. They are effective against both HIV and COVID
• B. They are effective against HIV but not COVID
• C. They are not effective against either HIV or COVID
• D. They are effective against COVID but not HIV

Answer: (C)

The main idea is that the compounds tested showed no antiviral activity against either HIV or SARS-CoV-2 in the context described. Antiviral drugs usually target specific steps in a virus’s life cycle, so activity against one virus and not another isn’t unusual. If the material reports no effect against both viruses, that means there’s no observed broad effectiveness in that setting. That’s why saying there’s no antiviral effectiveness against either HIV or COVID best matches the findings. The other statements would imply some activity against at least one virus, which isn’t supported by the material.

The main idea is that the compounds tested showed no antiviral activity against either HIV or SARS-CoV-2 in the context described. Antiviral drugs usually target specific steps in a virus’s life cycle, so activity against one virus and not another isn’t unusual. If the material reports no effect against both viruses, that means there’s no observed broad effectiveness in that setting. That’s why saying there’s no antiviral effectiveness against either HIV or COVID best matches the findings. The other statements would imply some activity against at least one virus, which isn’t supported by the material.