Logical reasoning PrepTest 157 · Section 2 · Question 21
Question prompt
Why the credited answer is right
Credited answer: E
The notes below walk through why it fits the stem and how to eliminate the rest.
Argument or Facts
Valid or Flawed
Strategy Overview
Answer Anticipation
Answer choices
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AAny commitment that is Remaining source text redacted.
Why choice A is not credited
This principle doesn't resemble "Premises → Conclusion." Instead, it resembles "Conclusion → Premises." The "if" part of this principle says a commitment is morally neutral. That part should go in the "then" part of the principle because that's the conclusion the essayist reaches, and we can only make conclusions about the "then" part of an "if-then" statement. Moreover, the "has outlasted its original justification or deserves no praise" part should go on the "if" side since those are premises the essayist uses.
The correct answer to a Principle (Strengthen) question should resemble "Premise → Conclusion." It can't go the other way — it shouldn't resemble "Conclusion → Premise." For this reason, (A) is incorrect.
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BCommitment to a relationship Remaining source text redacted.
Why choice B is not credited
If we diagrammed this principle, it would be, "Commitment virtuous ←→ Relationship or career is good." (The "when, but only when" part establishes the double-sided arrow. This means these conditions have a reciprocal relationship — either both or neither are present.)
This principle, however, won't justify the essayist's conclusion that all commitments are morally neutral. It would establish that the commitments made to bad careers and relationships are not morally virtuous. That doesn't imply that these commitments are morally neutral, however. They could be morally bad! Moreover, this principle would establish that commitments made to good careers and relationships are morally virtuous, not neutral.
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CIf a commitment deserves Remaining source text redacted.
Why choice C is not credited
This answer choice is tempting, but it won't help justify that all commitments are morally neutral. The essayist states that some commitments deserve no praise. According to this principle, those commitments would be morally neutral. But what about the commitments that deserve praise? Are those morally neutral, too? This principle doesn't tell us that, so it doesn't strengthen the essayist's reasoning.
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DIf a commitment has Remaining source text redacted.
Why choice D is not credited
This principle doesn't resemble "Premises → Conclusion." The essayist establishes that some commitments outlast their original justification. According to this principle, that would mean that those commitments are not morally virtuous. But that doesn't mean that they're morally neutral. They could be morally bad. Moreover, this principle doesn't tell us whether other commitments are morally neutral. Therefore, it doesn't establish that all commitments are morally neutral.
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EAll commitments are morally Remaining source text redacted.
Why choice E matches the stem
This isn't quite what we anticipated, but it connects one of the essayist's premises to their conclusion and thus resembles "Premises → Conclusion." Translated to a more straightforward "if-then" statement, this says, "If any commitments are undeserving of praise, then all commitments are morally neutral." This connects the essayist's premise that "commitment to a relationship that benefits none of the people involved deserves no praise" to the conclusion that "all commitments should be seen as morally neutral." The essayist identifies one commitment undeserving of praise, so this principle would establish that all commitments must be morally neutral.
Therefore, this principle bridges the gap between the essayist's premise and conclusion. We can confidently select (E).
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