Tone is the author's attitude toward the speech. Since we know that Dr. King was the author and presenter of the speech, this was one of inspiration, seriousness, hope, and encouraging. This is not to be confused with mood. Mood is your feelings from the text. So, while the tone may be one of hope, to say it was 'hopeful' would be a mood (if that is indeed what you are feeling when hearing it.)
The correct answer is surrealism.
When Romeo refers to Juliet as “the sun” in Scene 2 lines 2-4, he is calling her the center of his universe and the light of his life. This motif also appears during Friar Laurence's speech in Scene 3 when he talks about life and death, day and night, and light and dark.
