Logical ReasoningDifficulty: Medium

PT12 S4 Q16 Explanation

Chlorofluorocarbons are the best possible solvents

A free, expert breakdown of this official LSAT Logical Reasoning question.

TopicsMost Supported

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Stimulus

Chlorofluorocarbons are the best possible solvents to have in car engines for cleaning the electronic sensors in modern automobile ignition systems. These solvents have contributed significantly to automakers’ ability to meet legally mandated emission standards. Now automakers will have to phase out time that emission standards are becoming more stringent.

What this question is testing

Most Supported

Your task

Break the argument into its conclusion and evidence, then do exactly what the question stem asks with that structure.

Common trap

Answers that sound relevant to the topic but don't connect to the argument's actual reasoning.

Winning move

Predict what a right answer must do, then test each choice against the conclusion-evidence gap.

Reading along? Open the full official question in LawHub — we show a fragment here and keep the reasoning in our own words.

The question
16.

If under the circumstances described above cars continue to meet emission standards, which one of the following is the

Answer choices

  1. Trap3% picked this

    As emission standards become more stringent, automakers will increasingly cooperate with each other in the

  2. Trap11% picked this

    Car engines will be radically redesigned so as to do away with the need for cleaning

  3. Trap1% picked this

    There will be a marked shift toward smaller, lighter cars that will have less powerful engines but will

  4. Trap10% picked this

    The solvents developed to replace chlorofluorocarbons in car engines will be only marginally less effective

  5. Correct75% picked this

    Something other than the cleansers for electronic ignition sensors will make a relatively greater contribution to meeting emission

    Why this is right

    Answer E is correct.

    Skill tested: Most Supported · how this choice captures the argument's function is the move to repeat next time.

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