Marcus works for the FDA (Food and Drug Administration). How does his job MOST likely influence health promotion and disease prevention?

He studies viruses and helps stop them from spreading in the United States
He helps ensure that the food people eat in the United States is prepared safely
He makes sure that all Americans have equal access to health care
He offers affordable health insurance options to people who need them.

The best answer is:

- He helps ensure that the food people eat in the United States is prepared safely.

While Marcus's job at the FDA involves various responsibilities related to health promotion and disease prevention, the option that directly aligns with his role at the FDA is ensuring the safety of the food consumed in the United States. The FDA is responsible for regulating and monitoring food production, processing, and distribution to ensure that it meets safety standards. By ensuring the safety of the food supply, Marcus contributes to promoting the health of the population and preventing foodborne illnesses. The other options mentioned are not directly related to Marcus's role at the FDA.