Context: Below is a food web from a tundra ecosystem in Nunavut, a territory in Northern Canada.
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 omnivore in this food web?
A. rough-legged hawk
B. bear sedge
C. Arctic fox
From the given choices, choose the correct answer and respond with the letter of that choice.

C