Question

Which best describes the role of a producer in an ecosystem?

Answer 1

B. A producer supplies energy for the consumers in the ecosystem.

In science, a producer is an organism that can create it's on food and serves as food for a consumer. An example of a producer could be seaweed, or algae. 

Answer 2

B as the producer is the first organism is the food chain so it provides the energy for the secondary and tertiary consumers