An experiment measures quantities $a, b$ and $c$, and quantity $X$ is calculated from $X=a b^{2} / c^{3}$. If the percentage error in $a$, $b$ and $c$ are $\pm 1 \%, \pm 3 \%$ and $\pm 2 \%$, respectively, then the percentage error in $X$ will be

  • A

    $\pm 13\%$

  • B

    $\pm 7\%$

  • C

    $\pm 4\%$

  • D

    $\pm 1\%$

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