The image shows an energy pyramid. Which statement is best supported by the energy pyramid?

A. There's less energy available to herring in this ecosystem than to zooplankton
B. All of the energy at the phytoplankton's level was used to make sugars for food
C. Most of the energy in this ecosystem is stored at the whale's trophic level
D. All of the energy at the whale's trophic level entered the food chain at the primary consumer level