It is a mistake to conclude, as some have, that ancient people did not know what moral rights were simply because no known ancient language has an expression correctly translatable as "a moral right:" This would be like saying that a person who discovers a wild fruit tree and returns repeatedly to what the fruit is until naming it or learning its name.
What this question is testing
Your task
Find the assumption the argument requires in order for its conclusion to hold.
Common trap
Answers that would help the argument but aren't strictly required (sufficient, not necessary).
Winning move
Negate each choice — the right one breaks the argument when negated.
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