One Health aims to optimize health for which groups?

• A. People, animals, and the environment
• B. Plants, animals, and the atmosphere
• C. Humans, crops, and water
• D. Animals, soil, and climate

Answer: (A)

One Health hinges on the idea that health is shaped by the interactions between humans, animals, and the environment, so improving health means addressing all three together. The best choice names people, animals, and the environment, which directly reflects that integrated focus. The other options swap in elements like crops, plants, atmosphere, water, soil, or climate, which are important parts of ecological health but don’t capture the three-way collaboration at the heart of One Health.