Which statement expresses a main idea in Sonia Sotomayor Opening Statement?

Which dialogue introduces a conflict?

What does the duke reveal about himself to the reader as he speaks in “my last duchess” by robert browning? that he is a believer in romantic love that he is a calculating villain that he is a trustworthy husband that he is a sophisticated man worthy of respect

Read this excerpt from tim o’brien‘s “ambush” “i had already pulled the pin on a grenade. i had come to a crouch” which literary device is most clearly shown in this excerpt?