Plz help to kill a mockingbird

How does twain’s use of understatement serve his purpose

Which statement is most clearly objective?

Which sentence is correctly punctuated? a. i haven’t found a new job, and i don’t plan to look for one until i have to. b. my work is piling up—day to day—and i can’t seem to get caught up. c. i know things could be worse (they have been in the past).