medium · LSAT Logical Reasoning

Every year after the city holds its annual parade, the local economy experiences a surge. Therefore, the parade is the cause of the economic surge.

Which one of the following arguments is most similar in its flawed reasoning to the argument above?

  1. Warmer weather tends to coincide with higher ice cream sales. Thus, selling more ice cream will make the weather warmer.
  2. The rooster crows each morning just before sunrise. Therefore, the rooster's crowing makes the sun rise.
  3. Ever since the new accounting software went live, output has climbed ten percent. The software, then, is what lifted output.
  4. People who sleep eight hours a night tend to feel more energetic. So sleeping longer will leave you more energetic.
  5. The mayor opposes the parade, and the mayor has a record of poor judgment. So the economic surge cannot be due to the parade.

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