The greatest number among $\root 3 \of 9 ,\root 4 \of {11} ,\root 6 \of {17}  $ is

  • A

    $\root 3 \of 9 $

  • B

    $\root 4 \of {11} $

  • C

    $\root 6 \of {17} $

  • D

    Can not be determined

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