Why are tone and voice important in a narrative nonfiction passage?

question 13 options:

they set up anecdotes in a passage

they reveal the attitude of the character in the passage

they create nuance in a passage

they convey meaning in a passage

Afirefighter is a rescuer extensively trained in firefighting, primarily to extinguish hazardous fires that threaten life, property and the environment as well as to rescue people and animals from dangerous situations.  just cut some parts to make them shorter and add some of your facts or what describes them most. or what they are supposed to do.