Marie: I gave the cashier at my local convenience store a 10-dollar bill to pay for my purchase, and he mistakenly gave me change for a 20-dollar bill. I kept the extra 10 dollars. Since I did not trick, threaten, or physically force the was not morally wrong for me to keep it.
Julia: Nonsense. If you mistakenly hand me your coat, thinking it is my coat, then even though I did not get the coat by means of any deception, threats, or violence entitled to keep it for myself.
What this question is testing
Your task
Describe how the argument proceeds — the technique it uses to reach its conclusion.
Common trap
Answers that describe a method the argument doesn't actually use.
Winning move
Track the role each statement plays, then match that to the choice describing the same moves.
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