At a product meeting, someone proposes: “I chose this plan because it is the best of all the alternatives.” A colleague asks: “What makes it the best?” He replies: “Because none of the other plans are as good as it is!” Which of the following evaluations is most accurate?

Answer: B

• AHe has given a clear reason: this plan beats all the others, so it should be chosen.✗ Wrong. It looks like a comparison, but “beats all the others” and “is the best” mean exactly the same thing. It never explains in what respect the plan is better, so it is circular reasoning. This reflects the misconception that restating a conclusion as a comparison counts as evidence.
• BHe is merely repeating the conclusion without offering any concrete new grounds to support his choice.✓ Correct. The conclusion is “this plan is the best,” and the stated reason is “the other plans are not as good as it.” That is just the same claim reworded, providing no specific comparison criteria or factual basis. This is a classic circular argument.
• CHe has compared all the plans, so his reasoning is adequate.✗ Wrong. Merely claiming that a comparison was made does not mean the comparison had any substance. Saying only “the others are not as good” does not constitute an adequate reason. This mistakes the form of comparison for genuine supporting content.
• DHe commits the fallacy of hasty generalization, because the other plans may have merits he failed to see.✗ Wrong. The problem here is not hasty generalization; it is that the reason and the conclusion are one and the same, so no real argument exists at all. This option misidentifies the fallacy by focusing on possibly overlooked alternatives.