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 producer in this food web?
A. bilberry
B. earthworm
C. snowy owl
From the given choices, pick the correct answer and respond by indicating the letter of the correct option.

A