Logical reasoning PrepTest 119 · Section 2 · Question 21
Question prompt
Ethicist: As a function
Remaining source text redacted.
Why the credited answer is right
Credited answer: A
The notes below walk through why it fits the stem and how to eliminate the rest.
Argument or Facts
Facts
Valid or Flawed
NA
Question Type
Illustration Questions / Principle Questions
Stimulus Summary
~Have overwhelming evidence evidence that fulfilling duty will be a disaster → Fulfill duty
Answer Anticipation
The stimulus starts with some context, but the question stem asks us to apply the principle of morality outlined by the ethicist, and that is clearly started in the pivot statement (“However, it is a principle of morality that…”). And, as with most principles on the LSAT, it’s stated as a conditional.
We need to diagram it out (or at least get it into a format that we can understand easily), and then look for an answer that conforms to it. We’ve done that in our summary, so let’s find an answer that concludes someone should fulfill a duty because they lack overwhelming evidence that doing so will be a disaster. And let’s remember that we’re looking for an answer that concludes a necessary condition based on the sufficient - and so any answer that concludes someone shouldn’t fulfill a duty is automatically wrong since we don’t have a sufficient condition to establish that.
Answer choices
-
AA teacher thinks that Remaining source text redacted.
Why choice A matches the stem
The teacher here doesn’t have evidence that fulfilling her obligation to not raise the student’s grades will be disastrous - having a lower chance of getting an internship definitely doesn’t qualify. Therefore, she should fulfill her obligation - as the answer states. This argument conforms to the principle of morality in the stimulus, so it’s correct. -
BA person should not Remaining source text redacted.
Why choice B is not credited
This argument concludes that someone shouldn’t fulfill their duty, but the principle provides a sufficient condition only for establishing that someone should do so. -
CA police investigator discovers Remaining source text redacted.
Why choice C is not credited
Similar to (B), the principle doesn’t allow a conclusion to be drawn that someone shouldn’t fulfill a duty. -
DA psychiatrist's patient tells Remaining source text redacted.
Why choice D is not credited
This argument has competing duties, and the situation would call for the psychiatrist to fulfill both duties (which isn’t possible) since “committing a crime” isn’t necessarily disastrous consequences (maybe the crime was something minor). -
EA journalist thinks there Remaining source text redacted.
Why choice E is not credited
This argument is about fulfilling a duty on a certain timeline, but there’s no timeline element to the principle in the stimulus, so this answer is incorrect.
What this tests
Question analytics
Based on historical answer selection rates for this question.
Answer choice distribution
Accounts
Save your place across PrepTests
Bookmark questions, build weak-spot lists, and pick up exactly where you left off—built for serious repeat practice.
No payment yet. We will only email when accounts open.
Already have an account? Log in
Deeper help
Ask follow-ups on any step
Optional AI tutor mode will let you interrogate assumptions, compare answers, and drill weak patterns without leaving the page.
Human-written explanations stay primary; AI is an add-on when you want it.