The reason why Douglas included these observations in his speech was A. to ensure his audience is aware of the expectations they must meet as soldiers
This refers to the public speaking by a person that is addressed to a large number of people.
Hence, we can see that based on the complete text, there is the speech by Frederick Douglass as he talks about the duty, honor that is owed to the country and this was done to ensure his audience is aware of the expectations they must meet as soldiers
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