medium · GMAT Verbal

Every component in this new computer system is high-quality and has a very low failure rate. Therefore, the computer system as a whole will be exceptionally reliable and almost never fail.

Which of the following identifies the logical flaw in the argument?

  1. It treats the low failure rate of the components as conclusive proof that the system can never fail under any circumstances.
  2. It attacks the manufacturers of the components rather than the components themselves.
  3. It fails to define what 'exceptionally reliable' means in a quantifiable way.
  4. It ignores the possibility that some components might be more expensive than others.
  5. It assumes that because every part of a whole has a certain property, the whole itself must inherit that property.

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