What figure of speech is used in this line from Walt Whitman's poem "I Hear America Singing"? I hear America singing, the varied carols I hear

Which evidence supports the inference that nora is afraid of what torvald will say if krogstad tells him about her forgery? do it for my sake—for your own sake—for the children's sake." "you don't know what that letter can bring upon us." "yes, it's too late." "you will never have to do that."