Answer:
The series of questions used in this speech provokes the public to reason about racism and discrimination with African Americans.
Step-by-step explanation:
Frederick Douglass's speech is full of questions, as you can see in the question above. These questions were put to the speech in a purposeful manner, as Douglass wanted to force his audience to reason about the relevance of his speech when discrimination and racism with African Americans were giant and prevented them from being irrelevant at any time, any situation and in any region of the country.
In short, through the Douglass questions, he intended to provoke people's reasoning and make them realize how prejudiced they were through their own thoughts.