A batsman in his $17^{th}$ innings, makes a score of $85$ runs, and there by, increases his average by $3$ runs. What is his average after the $17^{th}$ innings ? He had never been $'not out'.$

  • A

    $47$

  • B

    $37$

  • C

    $39$

  • D

    $43$

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