If $x \sim B\left(6, \frac{1}{2}\right)$,then $p(|x-2| \leqslant 1)=$

  • A
    $\frac{31}{32}$
  • B
    $\frac{41}{64}$
  • C
    $\frac{51}{64}$
  • D
    $\frac{63}{64}$

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