Why is identifying the theme of a poem beneficial?

What would be an example of foreshadowing in a story about a magician who ends up going bad from too much power? a. the author shows the magician preparing his tricks before a show. b. the narrator describes the magician's rise in popularity at the beginning of the story. c. the reader is first introduced to the magician having fun scaring audiences with his tricks. d. the story begins on a cold autumn day in the suburbs of a big city

Our coach’s idea of food for the entire wrestling team was tiny sandwiches and fruit.

Matt is writing a literary analysis essay on shakespeare's use of foreshadowing in act 1 scene 1 of richard 3. which lines in this excerpt from that scene can he use as textual evidence in his essay?