Is a round character can be a static or dynamic

How does the poem's mood and tone change in each of these stages of “o captain! my captain! ” by walt whitman? (i need an answer asap )

Which best describes the suspense technique of flashback? an image, color, object, or similar is shown early in the film. it later reappears in a pivotal scene or plot point. details of the story outside of the chronological storyline are provided to the audience, often as a memory. illusions of explosions and other events are presented, often using computer-generated imagery to seem realistic. the screenwriter lets the audience know something the main character does not, usually something important to the plot.

Amy tried to write her essay but she was distracted by the phone ring the sentence above combines a. an independent clayse and a dependent clause b. two independent clauses c. a dependent clause d. none if the above