Question

they perfectly understood the meaning of the language they used, and how it would be understood by others; and they knew that it would not in any part of the civilized world be supposed to embrace the negro race, which, by common consent, had been excluded from civilized governments and the family of nations, and doomed to slavery.
--dred scott v. sandford,
supreme court of the united states

what type of fallacy or faulty reasoning is used in the passage?
ad populum
begging the claim
genetic fallacy
hasty generalization

Explanation:

The passage uses the argument that the negro race would not be supported to be embraced in the civilized world because it was excluded by governments and the family of nations and doomed to slavery. This is an appeal to what is popular or commonly accepted (the "ad populum" fallacy), as it relies on the idea that because others (governments, nations) excluded the negro race, it should be so. Let's analyze the other options:

• "Begging the claim" (circular reasoning) would involve the conclusion being part of the premise, which isn't the case here.
• "Genetic fallacy" focuses on the origin of an idea, not on popular acceptance.
• "Hasty generalization" involves drawing a conclusion from insufficient evidence, which is not the main issue here.

Answer:

A. ad populum