Here's why:
* Autotrophs are organisms that can make their own food using energy from the sun (photosynthesis) or inorganic chemicals (chemosynthesis).
* Producers are the foundation of any food chain or web, providing the initial source of energy for all other organisms.
Examples of producers include:
* Plants: They use sunlight, water, and carbon dioxide to make their own food through photosynthesis.
* Algae: They also use photosynthesis to produce food.
* Some bacteria: They can use chemosynthesis to convert inorganic chemicals into energy.
Therefore, the group of organisms that only includes autotrophs is the producers.