I believe that it is purpose. It is not theme nor pathos. I do not think that it is thesis because this paragraph states the thesis of the Deceleration of Independence. Hope this Helps!
We can actually see here that Douglass feels he had been cheated because: His owners have fed and clothed him in exchange for his liberty.
<h3>What is cheating?</h3>
Cheating actually refers to an act of engaging in dishonest and unfair deeds just to make gain or get an advantage.
Thus, we can actually deduce here that option A is the correct answer since it actually shows us the why Douglass felt he had been cheated.
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