The model shows the flow of energy at each trophic level.

Which trophic level contains the most energy, and why?

A Producers; they have the largest number of individuals of all the trophic levels.
B Primary consumers; they have the most variety of plants from which to obtain energy.
C Secondary consumers; they release the least amount of energy into the next trophic level.
D. Tertiary consumers; they have the smallest number of individuals that need to collect energy.