Question

which shows the most direct path that carbon can take through the carbon cycle?
plant @ atmosphere @ animal
animal @ plant @ atmosphere
plant @ animal @ atmosphere
atmosphere @ animal @ fossil fuel

Explanation:

Plants take in carbon dioxide from the atmosphere during photosynthesis. Animals then consume plants (or other animals that have consumed plants). This is a direct and straightforward path in the carbon cycle compared to more complex or indirect paths like the one involving fossil fuels.

Answer:

plant → atmosphere → animal