The correct answer is option D. "personification".
Explanation:
Personification is a figurative language device at which human qualities are given to non living objects. In the excerpt of the poem "Chicago" by Carl Sandburg herein shown, states that the city of Chicago has a pulse and is "bragging and laughing" since it has the heart of the people in his ribs. These qualities are proper of a human, but the author gives it to the city of Chicago, therefore the author is using personification in his poem.
