if you are 16 you can legally drive a car, but you have to have a permit and have a parent or guardian present and they have to be 18 years or older
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.)
Answer:
appeal would be the answer
A. It represents the kindness and decency of the speaker's father, which the speaker admires.