The plants are found at the lowest end of the food chain and they form the base for the primary and secondary consumers.
The food web and pyramid are a function of the interplay of energy that is available at the lowest trophic level and is then passed on to the next or higher order.
Thus plants get their energy from the sun and those plants and animals that derive their nutrition from the dead are called consumers.
This option B is correct.
Learn more about the plants and animals that get their energy from eating other things.
