Read the excerpt from "The Girl Who Silenced the World for Five Minutes."

• You don't know how to fix the holes in our ozone layer.

• You don't know how to bring salmon back up a dead stream.

• You don't know how to bring back an animal now extinct.

By repeating the phrase "You don't know," Suzuki creates

A. a peaceful tone.

B. a helpful tone.

C. a forceful tone.

D. a hopeful tone.