Which statements about the dialogue are true

Why is the word choice so important when developing a presentation?

"alice wondered a little at this,but she was too much in awe of the queen to disbelieve it".what is the effect of the author's word choice in this sentence?

Read the opening lines of sojourner truth's speech "ain't i a woman? " well, children, where there is so much racket there must be something out of kilter. i think that 'twixt the negroes of the south and the women at the north, all talking about rights, the white men will be in a fix pretty soon. but what's all this here talking about? what tone do these lines convey?