Phytoplankton Live on the Ocean Surface, Capturing Sunlight and Converting

Phytoplankton live on the ocean surface, capturing sunlight and converting it to energy. Tiny shrimp eat the phytoplankton as a food source. Small fish eat the shrimp as food. The interaction between the phytoplankton, shrimp, and fish is a good example of ________________.

A) a food web
B) a food chain
C) trophic levels
D) both b and c
E) none of the above