Which diagram shows how energy flows through a food chain?

Question

A. Producer,carnivore,herbivore
B. Sun,producers,herbivore,carnivore
C. Sun,herbivore,carnivore,producers
D. Carnivore,producers,herbivore

I'm only in 5th grade, please make it easy to understand. Thank you for your help.

Energy starts with the sun.

Plants get energy from the sun.

Herbivores eat plants.

Carnivores eat herbivores.