Context: Birds have feathers, two wings, and a beak.
Birds are warm-blooded. Warm-blooded animals can control their body temperature.
An ostrich is an example of a bird.
Select the bird below.
A. mandarinfish
B. American bullfrog
C. emerald hummingbird
D. California toad
From the given choices, pick the correct answer and respond by indicating the letter of the correct option.

C