What is the role of producers in the environment?

Athe producers construct objects (e.g., a bird making a nest or a beaver making a dam).

Bthe use energy from the environment such as the sun as to make food via photosynthesis,

Cthey are at the top of the food chain by regulating population (e.g., a wolf).

Dthese species are the most valuable because they create products sold to consumers.