In an explanatory essay, or any essay, the introductory paragraph introduces (hence it's name) the main idea, or what you are going to explain. The body paragraphs go into extreme detail of what the introductory paragraphs mentioned.
As a result of the Emancipation Proclamation -Apex
The right answer for the question that is being asked and shown above is that: "<span>c. To advance the cause of civil rights through non-violent protests"
The right answer for the question that is being asked and shown above is that: "</span><span> b. Montgomery bus boycotts "
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The right answer for the question that is being asked and shown above is that: <span>a. NAACP </span>
The answer is most likely a, but if not, then d is correct