Which of the following is an example of a population?

a. all of the redwood trees that live in a forest.

b. a spider and the fly it is about to eat.

c. all the plants that live near each other in a forest.

d. all the coyotes on Earth.

e. the earthworms that live in a grassland plus the earthworms that live in a forest.

The correct answer will be option-A

Explanation:

The ecological population is the group of the organism belonging to the same species which live or is found in the particular area and can interbreed.

Since in the given question, the redwood trees live in the same geographical area (forest) which can interbreed shows the population. The other examples represent the community which consists of more than one species.

Thus, option-A is the correct answer.