Read these sentences from the excerpt:

i would sometimes say to them, i wished i could be as free as they would be when they got to be men. "you will be free as soon as you are twenty-one, but i am a slave for life! have not i as good a right to be free as you have? "

how does the use of a rhetorical question advance the author's purpose of showing that all people deserve freedom?

it reminds the reader that some questions are unanswerable.

it demonstrates that douglass is questioning his beliefs.

it indicates that douglass believes he deserves freedom.

it shows the reader that douglass is unsure of his statements.