GMAT Sentence Correction

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Source: PREP

Level: 4

In laboratory rats, a low dose of aspirin usually suffices to block production of thromboxane, which is a substance that promotes blood clotting, but not seriously interfering with the production of prostacyclin, which prevents clotting.

  • A which is a substance that promotes blood clotting, but not seriously interfering
  • B a substance that promotes blood clotting, but not seriously interfering
  • C a substance that promotes blood clotting, but does not seriously interfere
  • D which is a substance to promote blood clotting, but does not seriously interfere
  • E which is a substance that promotes blood clotting, but not a serious interference

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