Writers rely on word choice to:

A. use acronyms.

B. raise their voices.

C. communicate tone.

D. create new words.

Writer rely on word choice to C. communicate tone.

Explanation:

Tone is the author's attitude toward his or her subject, characters, and readers. It is achieved through word choice (diction), sentence construction and word order (syntax), and by what the viewpoint character or the narrator focuses on. The tone of a piece can be happy, sad, melancholic, sarcastic, etc. The words chosen by the author will help convey such tone. For instance, if a speaker in a poem talks of sunshine, brightness, birds chirping and so on, we can infer the tone of the poem is happy, peaceful.

d is the correct answer.

b is incorrect because it makes food by itself

c is incorrect because us humans don't know how to produce their own food using the sun like plants.

a is incorrect because consumers can depend on carnivores for eating food for consumers to eat the dead organism. same thing with omnivores.