easy · LSAT Logical Reasoning

Sufficient sleep is essential for maintaining quick reaction times. Consequently, athletes who sleep at least eight hours per night will perform better in sports that require rapid reflexes.

Which one of the following, if true, most strengthens the argument?

  1. A study of professional baseball players found that those who hit an eight-hour sleep target connected with fastballs ten percent more often.
  2. Caffeine acts as a stimulant that can briefly sharpen alertness and quicken reaction speed.
  3. Many athletes struggle with insomnia brought on by the pressures of professional competition.
  4. Getting eight hours of sleep makes any athlete the fastest competitor in any reflex-based sport.
  5. Reaction time naturally slows as an athlete grows older, whatever that athlete's sleep habits.

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