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easy · LSAT Logical Reasoning

A polling firm surveyed shoppers as they left a downtown organic grocery store and found that 80 percent favored a proposed tax on sugary drinks. On this basis, the firm concluded that most residents of the city favor the proposed tax.

Which one of the following, if true, most strengthens the firm's conclusion?

  1. The proposed tax on sugary drinks would generate substantial revenue for the city.
  2. Downtown organic-grocery shoppers have views typical of city residents on the sugary-drink tax.
  3. Nearly every shopper surveyed pays city taxes and has lived downtown for at least five years.
  4. Shoppers at organic groceries are considerably more health-conscious than the average city resident.
  5. Eighty percent of the shoppers who were in fact surveyed said they favored the proposed tax.

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