Final answer:
A simple food chain consists of plants, herbivores, and carnivores.
Step-by-step explanation:
A food chain is a simple representation of the transfer of energy in an ecosystem. It shows how organisms depend on each other for food. The correct representation of a simple food chain is option B: Plant → herbivore → carnivore. In this chain, plants are producers that provide energy for herbivores (plant eaters) which in turn provide energy for carnivores (meat eaters).
Learn more about Food chains