The correct option is A.
Dashes are used in sentences to show interruption is speech or to show a sudden break in a sentence. For instance: Will mummy - can she- find out what we have done?
Dash can also be used to give more detailed information about a particular thing. For instance: My boss - I mean, my former boss - wanted me to go out with him.<span />
D.
I have a new wool sweater that is a deep shade of purple.
You can use
Almost very too enough
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.)
They are filming a country food stamps campaign.
