Answer:
A, producers are the beginning of a food chain.
Step-by-step explanation:
Producers are the beginning of every food chain. This is because they take energy from the sun and produce their own food. The plant which is producing the food is then eaten by an animal, then eaten by another animal, and it continues. Then the animals die from age and their nutrients sink back into the ground, only to be absorbed by another plant, starting the process all over again