Carbon-$14$ decays with a half-life of about $5,800$ years. In a sample of bone,the ratio of Carbon-$14$ to Carbon-$12$ is found to be $\frac{1}{4}$ of what it is in free air. This bone may belong to a period about $x$ centuries ago,where $x$ is nearest to:

  • A
    $2 \times 58$
  • B
    $58$
  • C
    $58/2$
  • D
    $3 \times 58$

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