The answer for that part of speech is preposition
Smidgen means a small amount of something.
noun , informal
a small amount : bit <a smidgen of salt> <a smidgen of common sense>
Answer:
B. proving to his audience that other trusted people from history agree with him
Explanation:
Dr. Martin Luther King's reference to St. Augustine who was a Christian clergyman and an advocate of peace and fairness shows to his audience that other trusted people from history agree with him.
Dr. King greatly enhanced his credibility by referring such a person of authority by showing that they shared the same views.
Answer:
It emphasizes that the speaker experiences music as a powerful force.
Explanation: i got it right on the test