Romeo is saying for the prince to have actual mercy on him. He rather die than leave Verona. He does not want to be banished because he wants to be with Juliet. So that's why he rather die.
Explanation:
Basically when you are paraphrasing dialogue you have to re-word this scene in your own words. When it says Which is the best paraphrase of this dialogue, Its telling you to write what is happening in the scene in your own words.
