The microscope in cell studies — practice question

The diagram illustrates how energy moves among organisms in an ecosystem. Which option correctly names each organism in the ecosystem?

• A1: primary consumers, 2: decomposers, 3: secondary consumers, 4: producers
• B1: primary consumers, 2: secondary consumers, 3: producers, 4: decomposers
• C1: secondary consumers, 2: decomposers, 3: producers, 4: primary consumers
• D1: secondary consumers, 2: primary consumers, 3: decomposers, 4: producers