Logical Reasoning

PT109 · S3 · Q11 Some people claim that the

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Some people claim that the reason herbs are not prescribed as drugs by licensed physicians is that the medical effectiveness of herbs is seriously in doubt.

Your task

Find the assumption the argument requires in order for its conclusion to hold.

Common trap

Answers that would help the argument but aren't strictly required (sufficient, not necessary).

Winning move

Negate each choice — the right one breaks the argument when negated.

11.

The argument depends on the assumption that

  1. the medical ineffectiveness of many

    Trap

    3% picked this

  2. the only time a substance

    Trap

    4% picked this

  3. Correct

    a licensed physician cannot recommend

    Why this is right

    Answer C is correct.

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

    90% picked this

  4. some other substances, besides herbs,

    Trap

    2% picked this

  5. the cost of medical care

    Trap

    1% picked this

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