medium · LSAT Logical Reasoning

The city's plan to install more streetlights is a waste of money. Lighting does not deter crime. This is proven by the fact that 60 percent of all crimes in this city occur during daylight hours.

The argument is most vulnerable to criticism on the grounds that it

  1. draws a conclusion about lighting's effect on nighttime crime from data concerning crime that occurs when added lighting would make no difference
  2. presumes, without any real supporting basis at all, that crimes carried out under cover of night are inherently more serious than those done by day
  3. faults the plan as wasteful without ever pausing to weigh the projected costs of installing and then later maintaining the proposed extra streetlights
  4. assumes that the level of available illumination is the single decisive factor that ultimately governs a would-be criminal's eventual decision to act
  5. overlooks the genuine possibility that a fair number of daytime crimes might themselves also be deterred by installing a set of additional streetlights

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