GMAT Sentence Correction

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Source: PREP

Level: 5

The number of plant and animal species that humans are known to have forced to extinction in the last half millennium is over 800.

  • A humans are known to have forced to extinction
  • B humans are known as having forced to become extinct
  • C humans are known for forcing to become extinct
  • D are known that humans forced to become extinct
  • E are known as having been forced to extinction by humans

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