Logical Reasoning

PT21 · S2 · Q13 Astronomers have long thought that

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Astronomers have long thought that the irregularity in the orbit of the planet Neptune was adequately explained by the gravitational pull exerted on Neptune by the planet Pluto.

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.

13.

If the statements above are true, they provide the most support for which one of the following?

  1. Neptune is somewhat larger than

    Trap

    4% picked this

  2. The orbit on Neptune is

    Trap

    3% picked this

  3. There exists another, as yet

    Trap

    3% picked this

  4. Correct

    The gravitational pull of Pluto

    Why this is right

    Answer D is correct.

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

    90% picked this

  5. Further observations of Pluto will

    Trap

    1% picked this

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