GMAT Sentence Correction

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Source: OG

Level: 3

Rock samples taken from the remains of an asteroid about twice the size of the 6-mile-wide asteroid that eradicated the dinosaurs has been dated to be 3.47 billion years old and thus is evidence of the earliest known asteroid impact on Earth.

  • A has been dated to be 3.47 billion years old and thus is
  • B has been dated at 3.47 billion years old and thus
  • C have been dated to be 3.47 billion years old and thus are
  • D have been dated as being 3.47 billion years old and thus
  • E have been dated at 3.47 billion years old and thus are

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