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THC is the main psychoactive ingredient in marijuana. In Washington State, a driver under 21 years of age may not drive with a THC level greater than _____ nanograms per milliliter of blood.

Correct answer

  • 2
  • zero
  • 4

Explanation

Tetrahydrocannabinol (THC) is the main psychoactive ingredient in marijuana. In Washington State, it is illegal for a driver under 21 years of age to drive with any detectable amount of THC in his or her blood.

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