A bird that can easily outcompete other birds for food and that can produce many eggs has a high fitness.
What are birds?
Birds are living creatures that come under class Aves.
They have wings to fly, a beak and their bones are hollow so that they can fly easily.
Birds lay eggs, and eat from grains and worms to snakes and small mammals.
Thus, the correct option is C, fitness.
Learn more about birds, here:
https://brainly.com/question/812855
