If the variance of the terms in an increasing $A.P.$, $b _{1}, b _{2}, b _{3}, \ldots b _{11}$ is $90,$ then the common difference of this $A.P.$ is

  • [JEE MAIN 2020]
  • A

    $3$

  • B

    $9$

  • C

    $-9$

  • D

    $-3$

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