Context: Below is a food web from Little Rock Lake, a freshwater lake ecosystem in Wisconsin.
A food web models how the matter eaten by organisms moves through an ecosystem. The arrows in a food web represent how matter moves between organisms in an ecosystem.
Which of the following organisms is the secondary consumer in this food web?
A. water flea
B. green algae
C. copepod
Identify the correct choice from the options below and respond with the letter of the correct option.

C