Which of the following is explicitly stated about COVID in relation to standard antivirals?

• A. It is effectively treated
• B. It is not effectively treated
• C. Its treatment is uncertain
• D. It is caused by a bacteria

Answer: (B)

The main idea here is how standard antivirals relate to COVID treatment. The statement being tested explicitly says that COVID is not effectively treated by standard antivirals. That direct claim matches the wording of the option chosen, making it the best fit.

Why that choice works: it conveys a definite assessment—that, as a class, standard antivirals don’t provide effective treatment for COVID. The other ideas are inconsistent with that explicit claim: saying COVID is treated effectively would conflict with the stated explicitness; saying treatment is uncertain would hedge and not match a definite statement; and saying COVID is caused by a bacterium is simply incorrect, as COVID is caused by a virus.